389211837

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1\times {\mathrm{827}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 603896832

約数和(自身を除く): 214684995

約数列:

[1, 3, 7, 21, 73, 219, 307, 511, 827, 921, 1533, 2149, 2481, 5789, 6447, 17367, 22411, 60371, 67233, 156877, 181113, 253889, 422597, 470631, 761667, 1267791, 1777223, 5331669, 18533897, 55601691, 129737279, 389211837]

約数ペア:

[(1, 389211837), (3, 129737279), (7, 55601691), (21, 18533897), (73, 5331669), (219, 1777223), (307, 1267791), (511, 761667), (827, 470631), (921, 422597), (1533, 253889), (2149, 181113), (2481, 156877), (5789, 67233), (6447, 60371), (17367, 22411)]