18415516

素因数分解:

$2^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1987}}^1$

素因数の和:2329

約数の個数: 24

約数和(自身を含む): 36960896

約数和(自身を除く): 18545380

約数列:

[1, 2, 4, 7, 14, 28, 331, 662, 1324, 1987, 2317, 3974, 4634, 7948, 9268, 13909, 27818, 55636, 657697, 1315394, 2630788, 4603879, 9207758, 18415516]

約数ペア:

[(1, 18415516), (2, 9207758), (4, 4603879), (7, 2630788), (14, 1315394), (28, 657697), (331, 55636), (662, 27818), (1324, 13909), (1987, 9268), (2317, 7948), (3974, 4634)]