19620872

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{22501}}^1$

素因数の和:22616

約数の個数: 16

約数和(自身を含む): 37128300

約数和(自身を除く): 17507428

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 22501, 45002, 90004, 180008, 2452609, 4905218, 9810436, 19620872]

約数ペア:

[(1, 19620872), (2, 9810436), (4, 4905218), (8, 2452609), (109, 180008), (218, 90004), (436, 45002), (872, 22501)]