21152008

素因数分解:

$2^3\times {\mathrm{269}}^1\times {\mathrm{9829}}^1$

素因数の和:10104

約数の個数: 16

約数和(自身を含む): 39811500

約数和(自身を除く): 18659492

約数列:

[1, 2, 4, 8, 269, 538, 1076, 2152, 9829, 19658, 39316, 78632, 2644001, 5288002, 10576004, 21152008]

約数ペア:

[(1, 21152008), (2, 10576004), (4, 5288002), (8, 2644001), (269, 78632), (538, 39316), (1076, 19658), (2152, 9829)]