21081870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1531}}^1$

素因数の和:1567

約数の個数: 80

約数和(自身を含む): 60060528

約数和(自身を除く): 38978658

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 1531, 2295, 2754, 3062, 4590, 4593, 6885, 7655, 9186, 13770, 13779, 15310, 22965, 26027, 27558, 41337, 45930, 52054, 68895, 78081, 82674, 124011, 130135, 137790, 156162, 206685, 234243, 248022, 260270, 390405, 413370, 468486, 620055, 702729, 780810, 1171215, 1240110, 1405458, 2108187, 2342430, 3513645, 4216374, 7027290, 10540935, 21081870]

約数ペア:

[(1, 21081870), (2, 10540935), (3, 7027290), (5, 4216374), (6, 3513645), (9, 2342430), (10, 2108187), (15, 1405458), (17, 1240110), (18, 1171215), (27, 780810), (30, 702729), (34, 620055), (45, 468486), (51, 413370), (54, 390405), (81, 260270), (85, 248022), (90, 234243), (102, 206685), (135, 156162), (153, 137790), (162, 130135), (170, 124011), (255, 82674), (270, 78081), (306, 68895), (405, 52054), (459, 45930), (510, 41337), (765, 27558), (810, 26027), (918, 22965), (1377, 15310), (1530, 13779), (1531, 13770), (2295, 9186), (2754, 7655), (3062, 6885), (4590, 4593)]