21251464

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{877}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 43144920

約数和(自身を除く): 21893456

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 233, 466, 877, 932, 1754, 1864, 3029, 3508, 6058, 7016, 11401, 12116, 22802, 24232, 45604, 91208, 204341, 408682, 817364, 1634728, 2656433, 5312866, 10625732, 21251464]

約数ペア:

[(1, 21251464), (2, 10625732), (4, 5312866), (8, 2656433), (13, 1634728), (26, 817364), (52, 408682), (104, 204341), (233, 91208), (466, 45604), (877, 24232), (932, 22802), (1754, 12116), (1864, 11401), (3029, 7016), (3508, 6058)]