18691321

素因数分解:

${\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:384

約数の個数: 16

約数和(自身を含む): 20931840

約数和(自身を除く): 2240519

約数列:

[1, 11, 79, 137, 157, 869, 1507, 1727, 10823, 12403, 21509, 119053, 136433, 236599, 1699211, 18691321]

約数ペア:

[(1, 18691321), (11, 1699211), (79, 236599), (137, 136433), (157, 119053), (869, 21509), (1507, 12403), (1727, 10823)]