31720161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 48254976

約数和(自身を除く): 16534815

約数列:

[1, 3, 11, 31, 33, 93, 101, 303, 307, 341, 921, 1023, 1111, 3131, 3333, 3377, 9393, 9517, 10131, 28551, 31007, 34441, 93021, 103323, 104687, 314061, 341077, 961217, 1023231, 2883651, 10573387, 31720161]

約数ペア:

[(1, 31720161), (3, 10573387), (11, 2883651), (31, 1023231), (33, 961217), (93, 341077), (101, 314061), (303, 104687), (307, 103323), (341, 93021), (921, 34441), (1023, 31007), (1111, 28551), (3131, 10131), (3333, 9517), (3377, 9393)]