21904967

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1511}}^1$

素因数の和:1646

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 4706233

約数列:

[1, 7, 19, 109, 133, 763, 1511, 2071, 10577, 14497, 28709, 164699, 200963, 1152893, 3129281, 21904967]

約数ペア:

[(1, 21904967), (7, 3129281), (19, 1152893), (109, 200963), (133, 164699), (763, 28709), (1511, 14497), (2071, 10577)]