20158061

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 5697139

約数列:

[1, 7, 11, 49, 77, 149, 251, 539, 1043, 1639, 1757, 2761, 7301, 11473, 12299, 19327, 37399, 80311, 135289, 261793, 411389, 1832551, 2879723, 20158061]

約数ペア:

[(1, 20158061), (7, 2879723), (11, 1832551), (49, 411389), (77, 261793), (149, 135289), (251, 80311), (539, 37399), (1043, 19327), (1639, 12299), (1757, 11473), (2761, 7301)]