21665050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3581}}^1$

素因数の和:3615

約数の個数: 36

約数和(自身を含む): 44305758

約数和(自身を除く): 22640708

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3581, 6050, 7162, 17905, 35810, 39391, 78782, 89525, 179050, 196955, 393910, 433301, 866602, 984775, 1969550, 2166505, 4333010, 10832525, 21665050]

約数ペア:

[(1, 21665050), (2, 10832525), (5, 4333010), (10, 2166505), (11, 1969550), (22, 984775), (25, 866602), (50, 433301), (55, 393910), (110, 196955), (121, 179050), (242, 89525), (275, 78782), (550, 39391), (605, 35810), (1210, 17905), (3025, 7162), (3581, 6050)]