21797252

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{569}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 39086040

約数和(自身を除く): 17288788

約数列:

[1, 2, 4, 61, 122, 157, 244, 314, 569, 628, 1138, 2276, 9577, 19154, 34709, 38308, 69418, 89333, 138836, 178666, 357332, 5449313, 10898626, 21797252]

約数ペア:

[(1, 21797252), (2, 10898626), (4, 5449313), (61, 357332), (122, 178666), (157, 138836), (244, 89333), (314, 69418), (569, 38308), (628, 34709), (1138, 19154), (2276, 9577)]