21845740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156041}}^1$

素因数の和:156057

約数の個数: 24

約数和(自身を含む): 52430112

約数和(自身を除く): 30584372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156041, 312082, 624164, 780205, 1092287, 1560410, 2184574, 3120820, 4369148, 5461435, 10922870, 21845740]

約数ペア:

[(1, 21845740), (2, 10922870), (4, 5461435), (5, 4369148), (7, 3120820), (10, 2184574), (14, 1560410), (20, 1092287), (28, 780205), (35, 624164), (70, 312082), (140, 156041)]