21530820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358847}}^1$

素因数の和:358859

約数の個数: 24

約数和(自身を含む): 60286464

約数和(自身を除く): 38755644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358847, 717694, 1076541, 1435388, 1794235, 2153082, 3588470, 4306164, 5382705, 7176940, 10765410, 21530820]

約数ペア:

[(1, 21530820), (2, 10765410), (3, 7176940), (4, 5382705), (5, 4306164), (6, 3588470), (10, 2153082), (12, 1794235), (15, 1435388), (20, 1076541), (30, 717694), (60, 358847)]