21318874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{5147}}^1$

素因数の和:5277

約数の個数: 16

約数和(自身を含む): 33976800

約数和(自身を除く): 12657926

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 5147, 10294, 97793, 195586, 561023, 1122046, 10659437, 21318874]

約数ペア:

[(1, 21318874), (2, 10659437), (19, 1122046), (38, 561023), (109, 195586), (218, 97793), (2071, 10294), (4142, 5147)]