21128437

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2351}}^1$

素因数の和:2424

約数の個数: 16

約数和(自身を含む): 24837120

約数和(自身を除く): 3708683

約数列:

[1, 11, 19, 43, 209, 473, 817, 2351, 8987, 25861, 44669, 101093, 491359, 1112023, 1920767, 21128437]

約数ペア:

[(1, 21128437), (11, 1920767), (19, 1112023), (43, 491359), (209, 101093), (473, 44669), (817, 25861), (2351, 8987)]