20642311

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:330

約数の個数: 16

約数和(自身を含む): 22176000

約数和(自身を除く): 1533689

約数列:

[1, 31, 41, 109, 149, 1271, 3379, 4469, 4619, 6109, 16241, 138539, 189379, 503471, 665881, 20642311]

約数ペア:

[(1, 20642311), (31, 665881), (41, 503471), (109, 189379), (149, 138539), (1271, 16241), (3379, 6109), (4469, 4619)]