20858474

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3697}}^1$

素因数の和:3750

約数の個数: 32

約数和(自身を含む): 39760896

約数和(自身を除く): 18902422

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 3697, 5642, 7394, 25879, 48061, 51758, 96122, 114607, 229214, 336427, 672854, 802249, 1489891, 1604498, 2979782, 10429237, 20858474]

約数ペア:

[(1, 20858474), (2, 10429237), (7, 2979782), (13, 1604498), (14, 1489891), (26, 802249), (31, 672854), (62, 336427), (91, 229214), (182, 114607), (217, 96122), (403, 51758), (434, 48061), (806, 25879), (2821, 7394), (3697, 5642)]