21972420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{122069}}^1$

素因数の和:122084

約数の個数: 36

約数和(自身を含む): 66650220

約数和(自身を除く): 44677800

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 122069, 244138, 366207, 488276, 610345, 732414, 1098621, 1220690, 1464828, 1831035, 2197242, 2441380, 3662070, 4394484, 5493105, 7324140, 10986210, 21972420]

約数ペア:

[(1, 21972420), (2, 10986210), (3, 7324140), (4, 5493105), (5, 4394484), (6, 3662070), (9, 2441380), (10, 2197242), (12, 1831035), (15, 1464828), (18, 1220690), (20, 1098621), (30, 732414), (36, 610345), (45, 488276), (60, 366207), (90, 244138), (180, 122069)]