18992511

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 28108080

約数和(自身を除く): 9115569

約数列:

[1, 3, 9, 89, 131, 181, 267, 393, 543, 801, 1179, 1629, 11659, 16109, 23711, 34977, 48327, 71133, 104931, 144981, 213399, 2110279, 6330837, 18992511]

約数ペア:

[(1, 18992511), (3, 6330837), (9, 2110279), (89, 213399), (131, 144981), (181, 104931), (267, 71133), (393, 48327), (543, 34977), (801, 23711), (1179, 16109), (1629, 11659)]