21892708

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 39178944

約数和(自身を除く): 17286236

約数列:

[1, 2, 4, 71, 142, 157, 284, 314, 491, 628, 982, 1964, 11147, 22294, 34861, 44588, 69722, 77087, 139444, 154174, 308348, 5473177, 10946354, 21892708]

約数ペア:

[(1, 21892708), (2, 10946354), (4, 5473177), (71, 308348), (142, 154174), (157, 139444), (284, 77087), (314, 69722), (491, 44588), (628, 34861), (982, 22294), (1964, 11147)]