21218326

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7649}}^1$

素因数の和:7743

約数の個数: 16

約数和(自身を含む): 33966000

約数和(自身を除く): 12747674

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7649, 15298, 145331, 290662, 558377, 1116754, 10609163, 21218326]

約数ペア:

[(1, 21218326), (2, 10609163), (19, 1116754), (38, 558377), (73, 290662), (146, 145331), (1387, 15298), (2774, 7649)]