21637620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120209}}^1$

素因数の和:120224

約数の個数: 36

約数和(自身を含む): 65634660

約数和(自身を除く): 43997040

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120209, 240418, 360627, 480836, 601045, 721254, 1081881, 1202090, 1442508, 1803135, 2163762, 2404180, 3606270, 4327524, 5409405, 7212540, 10818810, 21637620]

約数ペア:

[(1, 21637620), (2, 10818810), (3, 7212540), (4, 5409405), (5, 4327524), (6, 3606270), (9, 2404180), (10, 2163762), (12, 1803135), (15, 1442508), (18, 1202090), (20, 1081881), (30, 721254), (36, 601045), (45, 480836), (60, 360627), (90, 240418), (180, 120209)]