31371494

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:581

約数の個数: 64

約数和(自身を含む): 64945152

約数和(自身を除く): 33573658

約数列:

[1, 2, 7, 11, 14, 17, 22, 23, 34, 46, 77, 119, 154, 161, 187, 238, 253, 322, 374, 391, 506, 521, 782, 1042, 1309, 1771, 2618, 2737, 3542, 3647, 4301, 5474, 5731, 7294, 8602, 8857, 11462, 11983, 17714, 23966, 30107, 40117, 60214, 61999, 80234, 83881, 97427, 123998, 131813, 167762, 194854, 203711, 263626, 407422, 681989, 922691, 1363978, 1425977, 1845382, 2240821, 2851954, 4481642, 15685747, 31371494]

約数ペア:

[(1, 31371494), (2, 15685747), (7, 4481642), (11, 2851954), (14, 2240821), (17, 1845382), (22, 1425977), (23, 1363978), (34, 922691), (46, 681989), (77, 407422), (119, 263626), (154, 203711), (161, 194854), (187, 167762), (238, 131813), (253, 123998), (322, 97427), (374, 83881), (391, 80234), (506, 61999), (521, 60214), (782, 40117), (1042, 30107), (1309, 23966), (1771, 17714), (2618, 11983), (2737, 11462), (3542, 8857), (3647, 8602), (4301, 7294), (5474, 5731)]