21739245

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{367}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 16414995

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 359, 367, 1077, 1101, 1795, 1835, 3949, 4037, 5385, 5505, 11847, 12111, 19745, 20185, 59235, 60555, 131753, 395259, 658765, 1449283, 1976295, 4347849, 7246415, 21739245]

約数ペア:

[(1, 21739245), (3, 7246415), (5, 4347849), (11, 1976295), (15, 1449283), (33, 658765), (55, 395259), (165, 131753), (359, 60555), (367, 59235), (1077, 20185), (1101, 19745), (1795, 12111), (1835, 11847), (3949, 5505), (4037, 5385)]