21070778890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1144529}}^1$

素因数の和:1144806

約数の個数: 32

約数和(自身を含む): 43510452480

約数和(自身を除く): 22439673590

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 263, 526, 1315, 1841, 2630, 3682, 9205, 18410, 1144529, 2289058, 5722645, 8011703, 11445290, 16023406, 40058515, 80117030, 301011127, 602022254, 1505055635, 2107077889, 3010111270, 4214155778, 10535389445, 21070778890]

約数ペア:

[(1, 21070778890), (2, 10535389445), (5, 4214155778), (7, 3010111270), (10, 2107077889), (14, 1505055635), (35, 602022254), (70, 301011127), (263, 80117030), (526, 40058515), (1315, 16023406), (1841, 11445290), (2630, 8011703), (3682, 5722645), (9205, 2289058), (18410, 1144529)]