9987978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1663}}^1$

素因数の和:1699

約数の個数: 64

約数和(自身を含む): 26836992

約数和(自身を除く): 16849014

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 143, 154, 182, 231, 273, 286, 429, 462, 546, 858, 1001, 1663, 2002, 3003, 3326, 4989, 6006, 9978, 11641, 18293, 21619, 23282, 34923, 36586, 43238, 54879, 64857, 69846, 109758, 128051, 129714, 151333, 237809, 256102, 302666, 384153, 453999, 475618, 713427, 768306, 907998, 1426854, 1664663, 3329326, 4993989, 9987978]

約数ペア:

[(1, 9987978), (2, 4993989), (3, 3329326), (6, 1664663), (7, 1426854), (11, 907998), (13, 768306), (14, 713427), (21, 475618), (22, 453999), (26, 384153), (33, 302666), (39, 256102), (42, 237809), (66, 151333), (77, 129714), (78, 128051), (91, 109758), (143, 69846), (154, 64857), (182, 54879), (231, 43238), (273, 36586), (286, 34923), (429, 23282), (462, 21619), (546, 18293), (858, 11641), (1001, 9978), (1663, 6006), (2002, 4989), (3003, 3326)]