21064585

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{2741}}^1$

素因数の和:2828

約数の個数: 16

約数和(自身を含む): 26652240

約数和(自身を除く): 5587655

約数列:

[1, 5, 29, 53, 145, 265, 1537, 2741, 7685, 13705, 79489, 145273, 397445, 726365, 4212917, 21064585]

約数ペア:

[(1, 21064585), (5, 4212917), (29, 726365), (53, 397445), (145, 145273), (265, 79489), (1537, 13705), (2741, 7685)]