21533520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:169

約数の個数: 160

約数和(自身を含む): 71995392

約数和(自身を除く): 50461872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 47, 48, 60, 69, 80, 83, 92, 94, 115, 120, 138, 141, 166, 184, 188, 230, 235, 240, 249, 276, 282, 332, 345, 368, 376, 415, 460, 470, 498, 552, 564, 664, 690, 705, 752, 830, 920, 940, 996, 1081, 1104, 1128, 1245, 1328, 1380, 1410, 1660, 1840, 1880, 1909, 1992, 2162, 2256, 2490, 2760, 2820, 3243, 3320, 3760, 3818, 3901, 3984, 4324, 4980, 5405, 5520, 5640, 5727, 6486, 6640, 7636, 7802, 8648, 9545, 9960, 10810, 11280, 11454, 11703, 12972, 15272, 15604, 16215, 17296, 19090, 19505, 19920, 21620, 22908, 23406, 25944, 28635, 30544, 31208, 32430, 38180, 39010, 43240, 45816, 46812, 51888, 57270, 58515, 62416, 64860, 76360, 78020, 86480, 89723, 91632, 93624, 114540, 117030, 129720, 152720, 156040, 179446, 187248, 229080, 234060, 259440, 269169, 312080, 358892, 448615, 458160, 468120, 538338, 717784, 897230, 936240, 1076676, 1345845, 1435568, 1794460, 2153352, 2691690, 3588920, 4306704, 5383380, 7177840, 10766760, 21533520]

約数ペア:

[(1, 21533520), (2, 10766760), (3, 7177840), (4, 5383380), (5, 4306704), (6, 3588920), (8, 2691690), (10, 2153352), (12, 1794460), (15, 1435568), (16, 1345845), (20, 1076676), (23, 936240), (24, 897230), (30, 717784), (40, 538338), (46, 468120), (47, 458160), (48, 448615), (60, 358892), (69, 312080), (80, 269169), (83, 259440), (92, 234060), (94, 229080), (115, 187248), (120, 179446), (138, 156040), (141, 152720), (166, 129720), (184, 117030), (188, 114540), (230, 93624), (235, 91632), (240, 89723), (249, 86480), (276, 78020), (282, 76360), (332, 64860), (345, 62416), (368, 58515), (376, 57270), (415, 51888), (460, 46812), (470, 45816), (498, 43240), (552, 39010), (564, 38180), (664, 32430), (690, 31208), (705, 30544), (752, 28635), (830, 25944), (920, 23406), (940, 22908), (996, 21620), (1081, 19920), (1104, 19505), (1128, 19090), (1245, 17296), (1328, 16215), (1380, 15604), (1410, 15272), (1660, 12972), (1840, 11703), (1880, 11454), (1909, 11280), (1992, 10810), (2162, 9960), (2256, 9545), (2490, 8648), (2760, 7802), (2820, 7636), (3243, 6640), (3320, 6486), (3760, 5727), (3818, 5640), (3901, 5520), (3984, 5405), (4324, 4980)]