20942890

素因数分解:

$2^1\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3319}}^1$

素因数の和:3957

約数の個数: 16

約数和(自身を含む): 37768320

約数和(自身を除く): 16825430

約数列:

[1, 2, 5, 10, 631, 1262, 3155, 3319, 6310, 6638, 16595, 33190, 2094289, 4188578, 10471445, 20942890]

約数ペア:

[(1, 20942890), (2, 10471445), (5, 4188578), (10, 2094289), (631, 33190), (1262, 16595), (3155, 6638), (3319, 6310)]