21938235

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{4289}}^1$

素因数の和:4339

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 17598405

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 155, 165, 341, 465, 1023, 1705, 4289, 5115, 12867, 21445, 47179, 64335, 132959, 141537, 235895, 398877, 664795, 707685, 1462549, 1994385, 4387647, 7312745, 21938235]

約数ペア:

[(1, 21938235), (3, 7312745), (5, 4387647), (11, 1994385), (15, 1462549), (31, 707685), (33, 664795), (55, 398877), (93, 235895), (155, 141537), (165, 132959), (341, 64335), (465, 47179), (1023, 21445), (1705, 12867), (4289, 5115)]