21057554

素因数分解:

$2^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{1423}}^1$

素因数の和:1590

約数の個数: 24

約数和(自身を含む): 37012608

約数和(自身を除く): 15955054

約数列:

[1, 2, 7, 14, 49, 98, 151, 302, 1057, 1423, 2114, 2846, 7399, 9961, 14798, 19922, 69727, 139454, 214873, 429746, 1504111, 3008222, 10528777, 21057554]

約数ペア:

[(1, 21057554), (2, 10528777), (7, 3008222), (14, 1504111), (49, 429746), (98, 214873), (151, 139454), (302, 69727), (1057, 19922), (1423, 14798), (2114, 9961), (2846, 7399)]