21656569

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1632

約数の個数: 16

約数和(自身を含む): 24998400

約数和(自身を除く): 3341831

約数列:

[1, 11, 31, 41, 341, 451, 1271, 1549, 13981, 17039, 48019, 63509, 528209, 698599, 1968779, 21656569]

約数ペア:

[(1, 21656569), (11, 1968779), (31, 698599), (41, 528209), (341, 63509), (451, 48019), (1271, 17039), (1549, 13981)]