21203039

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4783}}^1$

素因数の和:4838

約数の個数: 16

約数和(自身を含む): 25718784

約数和(自身を除く): 4515745

約数列:

[1, 11, 13, 31, 143, 341, 403, 4433, 4783, 52613, 62179, 148273, 683969, 1631003, 1927549, 21203039]

約数ペア:

[(1, 21203039), (11, 1927549), (13, 1631003), (31, 683969), (143, 148273), (341, 62179), (403, 52613), (4433, 4783)]