21250438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{31159}}^1$

素因数の和:31203

約数の個数: 16

約数和(自身を含む): 35896320

約数和(自身を除く): 14645882

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 31159, 62318, 342749, 685498, 965929, 1931858, 10625219, 21250438]

約数ペア:

[(1, 21250438), (2, 10625219), (11, 1931858), (22, 965929), (31, 685498), (62, 342749), (341, 62318), (682, 31159)]