21507660

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39829}}^1$

素因数の和:39847

約数の個数: 48

約数和(自身を含む): 66914400

約数和(自身を除く): 45406740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39829, 79658, 119487, 159316, 199145, 238974, 358461, 398290, 477948, 597435, 716922, 796580, 1075383, 1194870, 1433844, 1792305, 2150766, 2389740, 3584610, 4301532, 5376915, 7169220, 10753830, 21507660]

約数ペア:

[(1, 21507660), (2, 10753830), (3, 7169220), (4, 5376915), (5, 4301532), (6, 3584610), (9, 2389740), (10, 2150766), (12, 1792305), (15, 1433844), (18, 1194870), (20, 1075383), (27, 796580), (30, 716922), (36, 597435), (45, 477948), (54, 398290), (60, 358461), (90, 238974), (108, 199145), (135, 159316), (180, 119487), (270, 79658), (540, 39829)]