21716220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6829}}^1$

素因数の和:6894

約数の個数: 48

約数和(自身を含む): 61961760

約数和(自身を除く): 40245540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6829, 13658, 20487, 27316, 34145, 40974, 68290, 81948, 102435, 136580, 204870, 361937, 409740, 723874, 1085811, 1447748, 1809685, 2171622, 3619370, 4343244, 5429055, 7238740, 10858110, 21716220]

約数ペア:

[(1, 21716220), (2, 10858110), (3, 7238740), (4, 5429055), (5, 4343244), (6, 3619370), (10, 2171622), (12, 1809685), (15, 1447748), (20, 1085811), (30, 723874), (53, 409740), (60, 361937), (106, 204870), (159, 136580), (212, 102435), (265, 81948), (318, 68290), (530, 40974), (636, 34145), (795, 27316), (1060, 20487), (1590, 13658), (3180, 6829)]