21494788

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33377}}^1$

素因数の和:33411

約数の個数: 24

約数和(自身を含む): 44860032

約数和(自身を除く): 23365244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33377, 66754, 133508, 233639, 467278, 767671, 934556, 1535342, 3070684, 5373697, 10747394, 21494788]

約数ペア:

[(1, 21494788), (2, 10747394), (4, 5373697), (7, 3070684), (14, 1535342), (23, 934556), (28, 767671), (46, 467278), (92, 233639), (161, 133508), (322, 66754), (644, 33377)]