21891116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{22157}}^1$

素因数の和:22193

約数の個数: 24

約数和(自身を含む): 43429680

約数和(自身を除く): 21538564

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 22157, 44314, 88628, 288041, 420983, 576082, 841966, 1152164, 1683932, 5472779, 10945558, 21891116]

約数ペア:

[(1, 21891116), (2, 10945558), (4, 5472779), (13, 1683932), (19, 1152164), (26, 841966), (38, 576082), (52, 420983), (76, 288041), (247, 88628), (494, 44314), (988, 22157)]