21997620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{122209}}^1$

素因数の和:122224

約数の個数: 36

約数和(自身を含む): 66726660

約数和(自身を除く): 44729040

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 122209, 244418, 366627, 488836, 611045, 733254, 1099881, 1222090, 1466508, 1833135, 2199762, 2444180, 3666270, 4399524, 5499405, 7332540, 10998810, 21997620]

約数ペア:

[(1, 21997620), (2, 10998810), (3, 7332540), (4, 5499405), (5, 4399524), (6, 3666270), (9, 2444180), (10, 2199762), (12, 1833135), (15, 1466508), (18, 1222090), (20, 1099881), (30, 733254), (36, 611045), (45, 488836), (60, 366627), (90, 244418), (180, 122209)]