21038160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:653

約数の個数: 160

約数和(自身を含む): 76745088

約数和(自身を除く): 55706928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 16, 20, 22, 24, 26, 30, 33, 39, 40, 44, 48, 52, 55, 60, 65, 66, 78, 80, 88, 104, 110, 120, 130, 132, 143, 156, 165, 176, 195, 208, 220, 240, 260, 264, 286, 312, 330, 390, 429, 440, 520, 528, 572, 613, 624, 660, 715, 780, 858, 880, 1040, 1144, 1226, 1320, 1430, 1560, 1716, 1839, 2145, 2288, 2452, 2640, 2860, 3065, 3120, 3432, 3678, 4290, 4904, 5720, 6130, 6743, 6864, 7356, 7969, 8580, 9195, 9808, 11440, 12260, 13486, 14712, 15938, 17160, 18390, 20229, 23907, 24520, 26972, 29424, 31876, 33715, 34320, 36780, 39845, 40458, 47814, 49040, 53944, 63752, 67430, 73560, 79690, 80916, 87659, 95628, 101145, 107888, 119535, 127504, 134860, 147120, 159380, 161832, 175318, 191256, 202290, 239070, 262977, 269720, 318760, 323664, 350636, 382512, 404580, 438295, 478140, 525954, 539440, 637520, 701272, 809160, 876590, 956280, 1051908, 1314885, 1402544, 1618320, 1753180, 1912560, 2103816, 2629770, 3506360, 4207632, 5259540, 7012720, 10519080, 21038160]

約数ペア:

[(1, 21038160), (2, 10519080), (3, 7012720), (4, 5259540), (5, 4207632), (6, 3506360), (8, 2629770), (10, 2103816), (11, 1912560), (12, 1753180), (13, 1618320), (15, 1402544), (16, 1314885), (20, 1051908), (22, 956280), (24, 876590), (26, 809160), (30, 701272), (33, 637520), (39, 539440), (40, 525954), (44, 478140), (48, 438295), (52, 404580), (55, 382512), (60, 350636), (65, 323664), (66, 318760), (78, 269720), (80, 262977), (88, 239070), (104, 202290), (110, 191256), (120, 175318), (130, 161832), (132, 159380), (143, 147120), (156, 134860), (165, 127504), (176, 119535), (195, 107888), (208, 101145), (220, 95628), (240, 87659), (260, 80916), (264, 79690), (286, 73560), (312, 67430), (330, 63752), (390, 53944), (429, 49040), (440, 47814), (520, 40458), (528, 39845), (572, 36780), (613, 34320), (624, 33715), (660, 31876), (715, 29424), (780, 26972), (858, 24520), (880, 23907), (1040, 20229), (1144, 18390), (1226, 17160), (1320, 15938), (1430, 14712), (1560, 13486), (1716, 12260), (1839, 11440), (2145, 9808), (2288, 9195), (2452, 8580), (2640, 7969), (2860, 7356), (3065, 6864), (3120, 6743), (3432, 6130), (3678, 5720), (4290, 4904)]