30128931

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15427}}^1$

素因数の和:15471

約数の個数: 24

約数和(自身を含む): 51344384

約数和(自身を除く): 21215453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 15427, 46281, 107989, 138843, 323967, 478237, 971901, 1434711, 3347659, 4304133, 10042977, 30128931]

約数ペア:

[(1, 30128931), (3, 10042977), (7, 4304133), (9, 3347659), (21, 1434711), (31, 971901), (63, 478237), (93, 323967), (217, 138843), (279, 107989), (651, 46281), (1953, 15427)]