18964565

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2243}}^1$

素因数の和:2356

約数の個数: 16

約数和(自身を含む): 24235200

約数和(自身を除く): 5270635

約数列:

[1, 5, 19, 89, 95, 445, 1691, 2243, 8455, 11215, 42617, 199627, 213085, 998135, 3792913, 18964565]

約数ペア:

[(1, 18964565), (5, 3792913), (19, 998135), (89, 213085), (95, 199627), (445, 42617), (1691, 11215), (2243, 8455)]