18866855

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 28169856

約数和(自身を除く): 9303001

約数列:

[1, 5, 7, 17, 35, 37, 85, 119, 185, 259, 595, 629, 857, 1295, 3145, 4285, 4403, 5999, 14569, 22015, 29995, 31709, 72845, 101983, 158545, 221963, 509915, 539053, 1109815, 2695265, 3773371, 18866855]

約数ペア:

[(1, 18866855), (5, 3773371), (7, 2695265), (17, 1109815), (35, 539053), (37, 509915), (85, 221963), (119, 158545), (185, 101983), (259, 72845), (595, 31709), (629, 29995), (857, 22015), (1295, 14569), (3145, 5999), (4285, 4403)]