21067290

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:889

約数の個数: 80

約数和(自身を含む): 58544640

約数和(自身を除く): 37477350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 810, 837, 839, 930, 1395, 1674, 1678, 2511, 2517, 2790, 4185, 4195, 5022, 5034, 7551, 8370, 8390, 12555, 12585, 15102, 22653, 25110, 25170, 26009, 37755, 45306, 52018, 67959, 75510, 78027, 113265, 130045, 135918, 156054, 226530, 234081, 260090, 339795, 390135, 468162, 679590, 702243, 780270, 1170405, 1404486, 2106729, 2340810, 3511215, 4213458, 7022430, 10533645, 21067290]

約数ペア:

[(1, 21067290), (2, 10533645), (3, 7022430), (5, 4213458), (6, 3511215), (9, 2340810), (10, 2106729), (15, 1404486), (18, 1170405), (27, 780270), (30, 702243), (31, 679590), (45, 468162), (54, 390135), (62, 339795), (81, 260090), (90, 234081), (93, 226530), (135, 156054), (155, 135918), (162, 130045), (186, 113265), (270, 78027), (279, 75510), (310, 67959), (405, 52018), (465, 45306), (558, 37755), (810, 26009), (837, 25170), (839, 25110), (930, 22653), (1395, 15102), (1674, 12585), (1678, 12555), (2511, 8390), (2517, 8370), (2790, 7551), (4185, 5034), (4195, 5022)]