399421557

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{1931}}^1$

素因数の和:2150

約数の個数: 32

約数和(自身を含む): 608348160

約数和(自身を除く): 208926603

約数列:

[1, 3, 9, 27, 47, 141, 163, 423, 489, 1269, 1467, 1931, 4401, 5793, 7661, 17379, 22983, 52137, 68949, 90757, 206847, 272271, 314753, 816813, 944259, 2450439, 2832777, 8498331, 14793391, 44380173, 133140519, 399421557]

約数ペア:

[(1, 399421557), (3, 133140519), (9, 44380173), (27, 14793391), (47, 8498331), (141, 2832777), (163, 2450439), (423, 944259), (489, 816813), (1269, 314753), (1467, 272271), (1931, 206847), (4401, 90757), (5793, 68949), (7661, 52137), (17379, 22983)]