21898908

素因数分解:

$2^2\times 3^2\times {\mathrm{608303}}^1$

素因数の和:608313

約数の個数: 18

約数和(自身を含む): 55355664

約数和(自身を除く): 33456756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 608303, 1216606, 1824909, 2433212, 3649818, 5474727, 7299636, 10949454, 21898908]

約数ペア:

[(1, 21898908), (2, 10949454), (3, 7299636), (4, 5474727), (6, 3649818), (9, 2433212), (12, 1824909), (18, 1216606), (36, 608303)]