21568963

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 25297920

約数和(自身を除く): 3728957

約数列:

[1, 13, 23, 31, 169, 179, 299, 403, 713, 2327, 3887, 4117, 5239, 5549, 9269, 30251, 53521, 72137, 120497, 127627, 695773, 937781, 1659151, 21568963]

約数ペア:

[(1, 21568963), (13, 1659151), (23, 937781), (31, 695773), (169, 127627), (179, 120497), (299, 72137), (403, 53521), (713, 30251), (2327, 9269), (3887, 5549), (4117, 5239)]