21430980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13229}}^1$

素因数の和:13250

約数の個数: 60

約数和(自身を含む): 67234860

約数和(自身を除く): 45803880

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13229, 26458, 39687, 52916, 66145, 79374, 119061, 132290, 158748, 198435, 238122, 264580, 357183, 396870, 476244, 595305, 714366, 793740, 1071549, 1190610, 1428732, 1785915, 2143098, 2381220, 3571830, 4286196, 5357745, 7143660, 10715490, 21430980]

約数ペア:

[(1, 21430980), (2, 10715490), (3, 7143660), (4, 5357745), (5, 4286196), (6, 3571830), (9, 2381220), (10, 2143098), (12, 1785915), (15, 1428732), (18, 1190610), (20, 1071549), (27, 793740), (30, 714366), (36, 595305), (45, 476244), (54, 396870), (60, 357183), (81, 264580), (90, 238122), (108, 198435), (135, 158748), (162, 132290), (180, 119061), (270, 79374), (324, 66145), (405, 52916), (540, 39687), (810, 26458), (1620, 13229)]