21405072

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{34303}}^1$

素因数の和:34327

約数の個数: 40

約数和(自身を含む): 59551744

約数和(自身を除く): 38146672

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 34303, 68606, 102909, 137212, 205818, 274424, 411636, 445939, 548848, 823272, 891878, 1337817, 1646544, 1783756, 2675634, 3567512, 5351268, 7135024, 10702536, 21405072]

約数ペア:

[(1, 21405072), (2, 10702536), (3, 7135024), (4, 5351268), (6, 3567512), (8, 2675634), (12, 1783756), (13, 1646544), (16, 1337817), (24, 891878), (26, 823272), (39, 548848), (48, 445939), (52, 411636), (78, 274424), (104, 205818), (156, 137212), (208, 102909), (312, 68606), (624, 34303)]