21351849

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1291}}^1$

素因数の和:1480

約数の個数: 16

約数和(自身を含む): 29457600

約数和(自身を除く): 8105751

約数列:

[1, 3, 37, 111, 149, 447, 1291, 3873, 5513, 16539, 47767, 143301, 192359, 577077, 7117283, 21351849]

約数ペア:

[(1, 21351849), (3, 7117283), (37, 577077), (111, 192359), (149, 143301), (447, 47767), (1291, 16539), (3873, 5513)]