21954494

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1\times {\mathrm{523}}^1$

素因数の和:815

約数の個数: 16

約数和(自身を含む): 33452160

約数和(自身を除く): 11497666

約数列:

[1, 2, 139, 151, 278, 302, 523, 1046, 20989, 41978, 72697, 78973, 145394, 157946, 10977247, 21954494]

約数ペア:

[(1, 21954494), (2, 10977247), (139, 157946), (151, 145394), (278, 78973), (302, 72697), (523, 41978), (1046, 20989)]