21080619

素因数分解:

$3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{3313}}^1$

素因数の和:3427

約数の個数: 24

約数和(自身を含む): 35154912

約数和(自身を除く): 14074293

約数列:

[1, 3, 7, 9, 21, 63, 101, 303, 707, 909, 2121, 3313, 6363, 9939, 23191, 29817, 69573, 208719, 334613, 1003839, 2342291, 3011517, 7026873, 21080619]

約数ペア:

[(1, 21080619), (3, 7026873), (7, 3011517), (9, 2342291), (21, 1003839), (63, 334613), (101, 208719), (303, 69573), (707, 29817), (909, 23191), (2121, 9939), (3313, 6363)]