21626878

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:712

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 18531842

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 331, 359, 662, 718, 2317, 2513, 4303, 4634, 4667, 5026, 8606, 9334, 30121, 32669, 60242, 65338, 118829, 237658, 831803, 1544777, 1663606, 3089554, 10813439, 21626878]

約数ペア:

[(1, 21626878), (2, 10813439), (7, 3089554), (13, 1663606), (14, 1544777), (26, 831803), (91, 237658), (182, 118829), (331, 65338), (359, 60242), (662, 32669), (718, 30121), (2317, 9334), (2513, 8606), (4303, 5026), (4634, 4667)]