31257369

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 53726400

約数和(自身を除く): 22469031

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 149, 163, 429, 447, 489, 1287, 1341, 1467, 1639, 1793, 1937, 2119, 4917, 5379, 5811, 6357, 14751, 16137, 17433, 19071, 21307, 23309, 24287, 63921, 69927, 72861, 191763, 209781, 218583, 267157, 315731, 801471, 947193, 2404413, 2841579, 3473041, 10419123, 31257369]

約数ペア:

[(1, 31257369), (3, 10419123), (9, 3473041), (11, 2841579), (13, 2404413), (33, 947193), (39, 801471), (99, 315731), (117, 267157), (143, 218583), (149, 209781), (163, 191763), (429, 72861), (447, 69927), (489, 63921), (1287, 24287), (1341, 23309), (1467, 21307), (1639, 19071), (1793, 17433), (1937, 16137), (2119, 14751), (4917, 6357), (5379, 5811)]