31997133

素因数分解:

$3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2143}}^1$

素因数の和:2238

約数の個数: 32

約数和(自身を含む): 54886400

約数和(自身を除く): 22889267

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 189, 237, 553, 711, 1659, 2133, 2143, 4977, 6429, 14931, 15001, 19287, 45003, 57861, 135009, 169297, 405027, 507891, 1185079, 1523673, 3555237, 4571019, 10665711, 31997133]

約数ペア:

[(1, 31997133), (3, 10665711), (7, 4571019), (9, 3555237), (21, 1523673), (27, 1185079), (63, 507891), (79, 405027), (189, 169297), (237, 135009), (553, 57861), (711, 45003), (1659, 19287), (2133, 15001), (2143, 14931), (4977, 6429)]