21575840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:103

約数の個数: 192

約数和(自身を含む): 64012032

約数和(自身を除く): 42436192

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 23, 26, 32, 40, 41, 44, 46, 52, 55, 65, 80, 82, 88, 92, 104, 110, 115, 130, 143, 160, 164, 176, 184, 205, 208, 220, 230, 253, 260, 286, 299, 328, 352, 368, 410, 416, 440, 451, 460, 506, 520, 533, 572, 598, 656, 715, 736, 820, 880, 902, 920, 943, 1012, 1040, 1066, 1144, 1196, 1265, 1312, 1430, 1495, 1640, 1760, 1804, 1840, 1886, 2024, 2080, 2132, 2255, 2288, 2392, 2530, 2665, 2860, 2990, 3280, 3289, 3608, 3680, 3772, 4048, 4264, 4510, 4576, 4715, 4784, 5060, 5330, 5720, 5863, 5980, 6560, 6578, 7216, 7544, 8096, 8528, 9020, 9430, 9568, 10120, 10373, 10660, 11440, 11726, 11960, 12259, 13156, 14432, 15088, 16445, 17056, 18040, 18860, 20240, 20746, 21320, 22880, 23452, 23920, 24518, 26312, 29315, 30176, 32890, 36080, 37720, 40480, 41492, 42640, 46904, 47840, 49036, 51865, 52624, 58630, 61295, 65780, 72160, 75440, 82984, 85280, 93808, 98072, 103730, 105248, 117260, 122590, 131560, 134849, 150880, 165968, 187616, 196144, 207460, 234520, 245180, 263120, 269698, 331936, 392288, 414920, 469040, 490360, 526240, 539396, 674245, 829840, 938080, 980720, 1078792, 1348490, 1659680, 1961440, 2157584, 2696980, 4315168, 5393960, 10787920, 21575840]

約数ペア:

[(1, 21575840), (2, 10787920), (4, 5393960), (5, 4315168), (8, 2696980), (10, 2157584), (11, 1961440), (13, 1659680), (16, 1348490), (20, 1078792), (22, 980720), (23, 938080), (26, 829840), (32, 674245), (40, 539396), (41, 526240), (44, 490360), (46, 469040), (52, 414920), (55, 392288), (65, 331936), (80, 269698), (82, 263120), (88, 245180), (92, 234520), (104, 207460), (110, 196144), (115, 187616), (130, 165968), (143, 150880), (160, 134849), (164, 131560), (176, 122590), (184, 117260), (205, 105248), (208, 103730), (220, 98072), (230, 93808), (253, 85280), (260, 82984), (286, 75440), (299, 72160), (328, 65780), (352, 61295), (368, 58630), (410, 52624), (416, 51865), (440, 49036), (451, 47840), (460, 46904), (506, 42640), (520, 41492), (533, 40480), (572, 37720), (598, 36080), (656, 32890), (715, 30176), (736, 29315), (820, 26312), (880, 24518), (902, 23920), (920, 23452), (943, 22880), (1012, 21320), (1040, 20746), (1066, 20240), (1144, 18860), (1196, 18040), (1265, 17056), (1312, 16445), (1430, 15088), (1495, 14432), (1640, 13156), (1760, 12259), (1804, 11960), (1840, 11726), (1886, 11440), (2024, 10660), (2080, 10373), (2132, 10120), (2255, 9568), (2288, 9430), (2392, 9020), (2530, 8528), (2665, 8096), (2860, 7544), (2990, 7216), (3280, 6578), (3289, 6560), (3608, 5980), (3680, 5863), (3772, 5720), (4048, 5330), (4264, 5060), (4510, 4784), (4576, 4715)]