18692745

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 31101312

約数和(自身を除く): 12408567

約数列:

[1, 3, 5, 15, 43, 73, 129, 215, 219, 365, 397, 645, 1095, 1191, 1985, 3139, 5955, 9417, 15695, 17071, 28981, 47085, 51213, 85355, 86943, 144905, 256065, 434715, 1246183, 3738549, 6230915, 18692745]

約数ペア:

[(1, 18692745), (3, 6230915), (5, 3738549), (15, 1246183), (43, 434715), (73, 256065), (129, 144905), (215, 86943), (219, 85355), (365, 51213), (397, 47085), (645, 28981), (1095, 17071), (1191, 15695), (1985, 9417), (3139, 5955)]