21605820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1229}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 60752160

約数和(自身を除く): 39146340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 293, 586, 879, 1172, 1229, 1465, 1758, 2458, 2930, 3516, 3687, 4395, 4916, 5860, 6145, 7374, 8790, 12290, 14748, 17580, 18435, 24580, 36870, 73740, 360097, 720194, 1080291, 1440388, 1800485, 2160582, 3600970, 4321164, 5401455, 7201940, 10802910, 21605820]

約数ペア:

[(1, 21605820), (2, 10802910), (3, 7201940), (4, 5401455), (5, 4321164), (6, 3600970), (10, 2160582), (12, 1800485), (15, 1440388), (20, 1080291), (30, 720194), (60, 360097), (293, 73740), (586, 36870), (879, 24580), (1172, 18435), (1229, 17580), (1465, 14748), (1758, 12290), (2458, 8790), (2930, 7374), (3516, 6145), (3687, 5860), (4395, 4916)]