18972104

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{21757}}^1$

素因数の和:21872

約数の個数: 16

約数和(自身を含む): 35900700

約数和(自身を除く): 16928596

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 21757, 43514, 87028, 174056, 2371513, 4743026, 9486052, 18972104]

約数ペア:

[(1, 18972104), (2, 9486052), (4, 4743026), (8, 2371513), (109, 174056), (218, 87028), (436, 43514), (872, 21757)]