20816620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94621}}^1$

素因数の和:94641

約数の個数: 24

約数和(自身を含む): 47689488

約数和(自身を除く): 26872868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94621, 189242, 378484, 473105, 946210, 1040831, 1892420, 2081662, 4163324, 5204155, 10408310, 20816620]

約数ペア:

[(1, 20816620), (2, 10408310), (4, 5204155), (5, 4163324), (10, 2081662), (11, 1892420), (20, 1040831), (22, 946210), (44, 473105), (55, 378484), (110, 189242), (220, 94621)]