21231272

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37379}}^1$

素因数の和:37456

約数の個数: 16

約数和(自身を含む): 40370400

約数和(自身を除く): 19139128

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37379, 74758, 149516, 299032, 2653909, 5307818, 10615636, 21231272]

約数ペア:

[(1, 21231272), (2, 10615636), (4, 5307818), (8, 2653909), (71, 299032), (142, 149516), (284, 74758), (568, 37379)]