21402552020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{588953}}^1$

素因数の和:589064

約数の個数: 48

約数和(自身を含む): 47493250560

約数和(自身を除く): 26090698540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 79, 92, 115, 158, 230, 316, 395, 460, 790, 1580, 1817, 3634, 7268, 9085, 18170, 36340, 588953, 1177906, 2355812, 2944765, 5889530, 11779060, 13545919, 27091838, 46527287, 54183676, 67729595, 93054574, 135459190, 186109148, 232636435, 270918380, 465272870, 930545740, 1070127601, 2140255202, 4280510404, 5350638005, 10701276010, 21402552020]

約数ペア:

[(1, 21402552020), (2, 10701276010), (4, 5350638005), (5, 4280510404), (10, 2140255202), (20, 1070127601), (23, 930545740), (46, 465272870), (79, 270918380), (92, 232636435), (115, 186109148), (158, 135459190), (230, 93054574), (316, 67729595), (395, 54183676), (460, 46527287), (790, 27091838), (1580, 13545919), (1817, 11779060), (3634, 5889530), (7268, 2944765), (9085, 2355812), (18170, 1177906), (36340, 588953)]