20211695

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19913}}^1$

素因数の和:19954

約数の個数: 16

約数和(自身を含む): 28676160

約数和(自身を除く): 8464465

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19913, 99565, 139391, 577477, 696955, 2887385, 4042339, 20211695]

約数ペア:

[(1, 20211695), (5, 4042339), (7, 2887385), (29, 696955), (35, 577477), (145, 139391), (203, 99565), (1015, 19913)]