20591718

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1597}}^1$

素因数の和:1916

約数の個数: 32

約数和(自身を含む): 47249664

約数和(自身を除く): 26657946

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 307, 614, 921, 1597, 1842, 2149, 3194, 4298, 4791, 6447, 9582, 11179, 12894, 22358, 33537, 67074, 490279, 980558, 1470837, 2941674, 3431953, 6863906, 10295859, 20591718]

約数ペア:

[(1, 20591718), (2, 10295859), (3, 6863906), (6, 3431953), (7, 2941674), (14, 1470837), (21, 980558), (42, 490279), (307, 67074), (614, 33537), (921, 22358), (1597, 12894), (1842, 11179), (2149, 9582), (3194, 6447), (4298, 4791)]