20719428

素因数分解:

$2^2\times 3^1\times {\mathrm{811}}^1\times {\mathrm{2129}}^1$

素因数の和:2947

約数の個数: 24

約数和(自身を含む): 48427680

約数和(自身を除く): 27708252

約数列:

[1, 2, 3, 4, 6, 12, 811, 1622, 2129, 2433, 3244, 4258, 4866, 6387, 8516, 9732, 12774, 25548, 1726619, 3453238, 5179857, 6906476, 10359714, 20719428]

約数ペア:

[(1, 20719428), (2, 10359714), (3, 6906476), (4, 5179857), (6, 3453238), (12, 1726619), (811, 25548), (1622, 12774), (2129, 9732), (2433, 8516), (3244, 6387), (4258, 4866)]