18995830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38767}}^1$

素因数の和:38788

約数の個数: 24

約数和(自身を含む): 39775968

約数和(自身を除く): 20780138

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38767, 77534, 193835, 271369, 387670, 542738, 1356845, 1899583, 2713690, 3799166, 9497915, 18995830]

約数ペア:

[(1, 18995830), (2, 9497915), (5, 3799166), (7, 2713690), (10, 1899583), (14, 1356845), (35, 542738), (49, 387670), (70, 271369), (98, 193835), (245, 77534), (490, 38767)]