19879864

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{21991}}^1$

素因数の和:22110

約数の個数: 16

約数和(自身を含む): 37606320

約数和(自身を除く): 17726456

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 21991, 43982, 87964, 175928, 2484983, 4969966, 9939932, 19879864]

約数ペア:

[(1, 19879864), (2, 9939932), (4, 4969966), (8, 2484983), (113, 175928), (226, 87964), (452, 43982), (904, 21991)]