19378121

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3253}}^1$

素因数の和:3320

約数の個数: 16

約数和(自身を含む): 23741184

約数和(自身を除く): 4363063

約数列:

[1, 7, 23, 37, 161, 259, 851, 3253, 5957, 22771, 74819, 120361, 523733, 842527, 2768303, 19378121]

約数ペア:

[(1, 19378121), (7, 2768303), (23, 842527), (37, 523733), (161, 120361), (259, 74819), (851, 22771), (3253, 5957)]