21555604

素因数分解:

$2^2\times 7^1\times {\mathrm{541}}^1\times {\mathrm{1423}}^1$

素因数の和:1975

約数の個数: 24

約数和(自身を含む): 43221248

約数和(自身を除く): 21665644

約数列:

[1, 2, 4, 7, 14, 28, 541, 1082, 1423, 2164, 2846, 3787, 5692, 7574, 9961, 15148, 19922, 39844, 769843, 1539686, 3079372, 5388901, 10777802, 21555604]

約数ペア:

[(1, 21555604), (2, 10777802), (4, 5388901), (7, 3079372), (14, 1539686), (28, 769843), (541, 39844), (1082, 19922), (1423, 15148), (2164, 9961), (2846, 7574), (3787, 5692)]