21006063

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 13850577

約数列:

[1, 3, 9, 13, 29, 39, 41, 87, 117, 123, 151, 261, 369, 377, 453, 533, 1131, 1189, 1359, 1599, 1963, 3393, 3567, 4379, 4797, 5889, 6191, 10701, 13137, 15457, 17667, 18573, 39411, 46371, 55719, 56927, 80483, 139113, 170781, 179539, 241449, 512343, 538617, 724347, 1615851, 2334007, 7002021, 21006063]

約数ペア:

[(1, 21006063), (3, 7002021), (9, 2334007), (13, 1615851), (29, 724347), (39, 538617), (41, 512343), (87, 241449), (117, 179539), (123, 170781), (151, 139113), (261, 80483), (369, 56927), (377, 55719), (453, 46371), (533, 39411), (1131, 18573), (1189, 17667), (1359, 15457), (1599, 13137), (1963, 10701), (3393, 6191), (3567, 5889), (4379, 4797)]