21047042

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{1097}}^1$

素因数の和:1333

約数の個数: 16

約数和(自身を含む): 32373432

約数和(自身を除く): 11326390

約数列:

[1, 2, 53, 106, 181, 362, 1097, 2194, 9593, 19186, 58141, 116282, 198557, 397114, 10523521, 21047042]

約数ペア:

[(1, 21047042), (2, 10523521), (53, 397114), (106, 198557), (181, 116282), (362, 58141), (1097, 19186), (2194, 9593)]