20613663

素因数分解:

$3^3\times 7^2\times {\mathrm{15581}}^1$

素因数の和:15604

約数の個数: 24

約数和(自身を含む): 35526960

約数和(自身を除く): 14913297

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15581, 46743, 109067, 140229, 327201, 420687, 763469, 981603, 2290407, 2944809, 6871221, 20613663]

約数ペア:

[(1, 20613663), (3, 6871221), (7, 2944809), (9, 2290407), (21, 981603), (27, 763469), (49, 420687), (63, 327201), (147, 140229), (189, 109067), (441, 46743), (1323, 15581)]