19872535

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 24435936

約数和(自身を除く): 4563401

約数列:

[1, 5, 67, 137, 335, 433, 685, 2165, 9179, 29011, 45895, 59321, 145055, 296605, 3974507, 19872535]

約数ペア:

[(1, 19872535), (5, 3974507), (67, 296605), (137, 145055), (335, 59321), (433, 45895), (685, 29011), (2165, 9179)]