21338350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3527}}^1$

素因数の和:3561

約数の個数: 36

約数和(自身を含む): 43637832

約数和(自身を除く): 22299482

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3527, 6050, 7054, 17635, 35270, 38797, 77594, 88175, 176350, 193985, 387970, 426767, 853534, 969925, 1939850, 2133835, 4267670, 10669175, 21338350]

約数ペア:

[(1, 21338350), (2, 10669175), (5, 4267670), (10, 2133835), (11, 1939850), (22, 969925), (25, 853534), (50, 426767), (55, 387970), (110, 193985), (121, 176350), (242, 88175), (275, 77594), (550, 38797), (605, 35270), (1210, 17635), (3025, 7054), (3527, 6050)]