19640145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{187049}}^1$

素因数の和:187064

約数の個数: 16

約数和(自身を含む): 35913600

約数和(自身を除く): 16273455

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 187049, 561147, 935245, 1309343, 2805735, 3928029, 6546715, 19640145]

約数ペア:

[(1, 19640145), (3, 6546715), (5, 3928029), (7, 2805735), (15, 1309343), (21, 935245), (35, 561147), (105, 187049)]