20216402055

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{242971}}^1$

素因数の和:243068

約数の個数: 36

約数和(自身を含む): 35875787688

約数和(自身を除く): 15659385633

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1849, 1935, 5547, 9245, 16641, 27735, 83205, 242971, 728913, 1214855, 2186739, 3644565, 10447753, 10933695, 31343259, 52238765, 94029777, 156716295, 449253379, 470148885, 1347760137, 2246266895, 4043280411, 6738800685, 20216402055]

約数ペア:

[(1, 20216402055), (3, 6738800685), (5, 4043280411), (9, 2246266895), (15, 1347760137), (43, 470148885), (45, 449253379), (129, 156716295), (215, 94029777), (387, 52238765), (645, 31343259), (1849, 10933695), (1935, 10447753), (5547, 3644565), (9245, 2186739), (16641, 1214855), (27735, 728913), (83205, 242971)]