39968542

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{1663}}^1$

素因数の和:1923

約数の個数: 16

約数和(自身を含む): 61281792

約数和(自身を除く): 21313250

約数列:

[1, 2, 61, 122, 197, 394, 1663, 3326, 12017, 24034, 101443, 202886, 327611, 655222, 19984271, 39968542]

約数ペア:

[(1, 39968542), (2, 19984271), (61, 655222), (122, 327611), (197, 202886), (394, 101443), (1663, 24034), (3326, 12017)]