20131493781

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1\times {\mathrm{877}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 31719260160

約数和(自身を除く): 11587766379

約数列:

[1, 3, 7, 21, 59, 97, 177, 191, 291, 413, 573, 679, 877, 1239, 1337, 2037, 2631, 4011, 5723, 6139, 11269, 17169, 18417, 18527, 33807, 40061, 51743, 55581, 78883, 85069, 120183, 129689, 155229, 167507, 236649, 255207, 362201, 389067, 502521, 595483, 1086603, 1093093, 1172549, 1786449, 3279279, 3517647, 5019071, 7651651, 9882913, 15057213, 16248179, 22954953, 29648739, 35133497, 48744537, 69180391, 105400491, 113737253, 207541173, 341211759, 958642561, 2875927683, 6710497927, 20131493781]

約数ペア:

[(1, 20131493781), (3, 6710497927), (7, 2875927683), (21, 958642561), (59, 341211759), (97, 207541173), (177, 113737253), (191, 105400491), (291, 69180391), (413, 48744537), (573, 35133497), (679, 29648739), (877, 22954953), (1239, 16248179), (1337, 15057213), (2037, 9882913), (2631, 7651651), (4011, 5019071), (5723, 3517647), (6139, 3279279), (11269, 1786449), (17169, 1172549), (18417, 1093093), (18527, 1086603), (33807, 595483), (40061, 502521), (51743, 389067), (55581, 362201), (78883, 255207), (85069, 236649), (120183, 167507), (129689, 155229)]