21120938

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{2521}}^1$

素因数の和:2653

約数の個数: 16

約数和(自身を含む): 32685120

約数和(自身を除く): 11564182

約数列:

[1, 2, 59, 71, 118, 142, 2521, 4189, 5042, 8378, 148739, 178991, 297478, 357982, 10560469, 21120938]

約数ペア:

[(1, 21120938), (2, 10560469), (59, 357982), (71, 297478), (118, 178991), (142, 148739), (2521, 8378), (4189, 5042)]