21093306

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 49082880

約数和(自身を除く): 27989574

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 43, 57, 78, 86, 114, 129, 247, 258, 331, 494, 559, 662, 741, 817, 993, 1118, 1482, 1634, 1677, 1986, 2451, 3354, 4303, 4902, 6289, 8606, 10621, 12578, 12909, 14233, 18867, 21242, 25818, 28466, 31863, 37734, 42699, 63726, 81757, 85398, 163514, 185029, 245271, 270427, 370058, 490542, 540854, 555087, 811281, 1110174, 1622562, 3515551, 7031102, 10546653, 21093306]

約数ペア:

[(1, 21093306), (2, 10546653), (3, 7031102), (6, 3515551), (13, 1622562), (19, 1110174), (26, 811281), (38, 555087), (39, 540854), (43, 490542), (57, 370058), (78, 270427), (86, 245271), (114, 185029), (129, 163514), (247, 85398), (258, 81757), (331, 63726), (494, 42699), (559, 37734), (662, 31863), (741, 28466), (817, 25818), (993, 21242), (1118, 18867), (1482, 14233), (1634, 12909), (1677, 12578), (1986, 10621), (2451, 8606), (3354, 6289), (4303, 4902)]