19780166

素因数分解:

$2^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{4457}}^1$

素因数の和:4783

約数の個数: 16

約数和(自身を含む): 34023456

約数和(自身を除く): 14243290

約数列:

[1, 2, 7, 14, 317, 634, 2219, 4438, 4457, 8914, 31199, 62398, 1412869, 2825738, 9890083, 19780166]

約数ペア:

[(1, 19780166), (2, 9890083), (7, 2825738), (14, 1412869), (317, 62398), (634, 31199), (2219, 8914), (4438, 4457)]