21239998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{22079}}^1$

素因数の和:22131

約数の個数: 16

約数和(自身を含む): 35239680

約数和(自身を除く): 13999682

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 22079, 44158, 287027, 574054, 816923, 1633846, 10619999, 21239998]

約数ペア:

[(1, 21239998), (2, 10619999), (13, 1633846), (26, 816923), (37, 574054), (74, 287027), (481, 44158), (962, 22079)]