638971572

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1238317}}^1$

素因数の和:1238367

約数の個数: 24

約数和(自身を含む): 1525607776

約数和(自身を除く): 886636204

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 1238317, 2476634, 3714951, 4953268, 7429902, 14859804, 53247631, 106495262, 159742893, 212990524, 319485786, 638971572]

約数ペア:

[(1, 638971572), (2, 319485786), (3, 212990524), (4, 159742893), (6, 106495262), (12, 53247631), (43, 14859804), (86, 7429902), (129, 4953268), (172, 3714951), (258, 2476634), (516, 1238317)]