20804343

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 33019392

約数和(自身を除く): 12215049

約数列:

[1, 3, 7, 21, 41, 73, 123, 219, 287, 331, 511, 861, 993, 1533, 2317, 2993, 6951, 8979, 13571, 20951, 24163, 40713, 62853, 72489, 94997, 169141, 284991, 507423, 990683, 2972049, 6934781, 20804343]

約数ペア:

[(1, 20804343), (3, 6934781), (7, 2972049), (21, 990683), (41, 507423), (73, 284991), (123, 169141), (219, 94997), (287, 72489), (331, 62853), (511, 40713), (861, 24163), (993, 20951), (1533, 13571), (2317, 8979), (2993, 6951)]