19907153

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1277}}^1$

素因数の和:1432

約数の個数: 16

約数和(自身を含む): 24292224

約数和(自身を除く): 4385071

約数列:

[1, 7, 17, 119, 131, 917, 1277, 2227, 8939, 15589, 21709, 151963, 167287, 1171009, 2843879, 19907153]

約数ペア:

[(1, 19907153), (7, 2843879), (17, 1171009), (119, 167287), (131, 151963), (917, 21709), (1277, 15589), (2227, 8939)]