19493747

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12601}}^1$

素因数の和:12638

約数の個数: 16

約数和(自身を含む): 25405632

約数和(自身を除く): 5911885

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 12601, 88207, 163813, 214217, 1146691, 1499519, 2784821, 19493747]

約数ペア:

[(1, 19493747), (7, 2784821), (13, 1499519), (17, 1146691), (91, 214217), (119, 163813), (221, 88207), (1547, 12601)]