21551437

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 23616000

約数和(自身を除く): 2064563

約数列:

[1, 23, 29, 79, 409, 667, 1817, 2291, 9407, 11861, 32311, 52693, 272803, 743153, 937019, 21551437]

約数ペア:

[(1, 21551437), (23, 937019), (29, 743153), (79, 272803), (409, 52693), (667, 32311), (1817, 11861), (2291, 9407)]