21517942

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2\times {\mathrm{271}}^1$

素因数の和:376

約数の個数: 24

約数和(自身を含む): 34443360

約数和(自身を除く): 12925418

約数列:

[1, 2, 29, 37, 58, 74, 271, 542, 1073, 1369, 2146, 2738, 7859, 10027, 15718, 20054, 39701, 79402, 290783, 370999, 581566, 741998, 10758971, 21517942]

約数ペア:

[(1, 21517942), (2, 10758971), (29, 741998), (37, 581566), (58, 370999), (74, 290783), (271, 79402), (542, 39701), (1073, 20054), (1369, 15718), (2146, 10027), (2738, 7859)]