20280978

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{27481}}^1$

素因数の和:27530

約数の個数: 24

約数和(自身を含む): 45015516

約数和(自身を除く): 24734538

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 27481, 54962, 82443, 164886, 247329, 494658, 1126721, 2253442, 3380163, 6760326, 10140489, 20280978]

約数ペア:

[(1, 20280978), (2, 10140489), (3, 6760326), (6, 3380163), (9, 2253442), (18, 1126721), (41, 494658), (82, 247329), (123, 164886), (246, 82443), (369, 54962), (738, 27481)]