81316251

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 124185600

約数和(自身を除く): 42869349

約数列:

[1, 3, 9, 27, 47, 139, 141, 417, 423, 461, 1251, 1269, 1383, 3753, 4149, 6533, 12447, 19599, 21667, 58797, 64079, 65001, 176391, 192237, 195003, 576711, 585009, 1730133, 3011713, 9035139, 27105417, 81316251]

約数ペア:

[(1, 81316251), (3, 27105417), (9, 9035139), (27, 3011713), (47, 1730133), (139, 585009), (141, 576711), (417, 195003), (423, 192237), (461, 176391), (1251, 65001), (1269, 64079), (1383, 58797), (3753, 21667), (4149, 19599), (6533, 12447)]