21115620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39103}}^1$

素因数の和:39121

約数の個数: 48

約数和(自身を含む): 65694720

約数和(自身を除く): 44579100

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, 39103, 78206, 117309, 156412, 195515, 234618, 351927, 391030, 469236, 586545, 703854, 782060, 1055781, 1173090, 1407708, 1759635, 2111562, 2346180, 3519270, 4223124, 5278905, 7038540, 10557810, 21115620]

約数ペア:

[(1, 21115620), (2, 10557810), (3, 7038540), (4, 5278905), (5, 4223124), (6, 3519270), (9, 2346180), (10, 2111562), (12, 1759635), (15, 1407708), (18, 1173090), (20, 1055781), (27, 782060), (30, 703854), (36, 586545), (45, 469236), (54, 391030), (60, 351927), (90, 234618), (108, 195515), (135, 156412), (180, 117309), (270, 78206), (540, 39103)]