21053864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202441}}^1$

素因数の和:202460

約数の個数: 16

約数和(自身を含む): 42512820

約数和(自身を除く): 21458956

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202441, 404882, 809764, 1619528, 2631733, 5263466, 10526932, 21053864]

約数ペア:

[(1, 21053864), (2, 10526932), (4, 5263466), (8, 2631733), (13, 1619528), (26, 809764), (52, 404882), (104, 202441)]