21146872

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24251}}^1$

素因数の和:24366

約数の個数: 16

約数和(自身を含む): 40015800

約数和(自身を除く): 18868928

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24251, 48502, 97004, 194008, 2643359, 5286718, 10573436, 21146872]

約数ペア:

[(1, 21146872), (2, 10573436), (4, 5286718), (8, 2643359), (109, 194008), (218, 97004), (436, 48502), (872, 24251)]