21293140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96787}}^1$

素因数の和:96807

約数の個数: 24

約数和(自身を含む): 48781152

約数和(自身を除く): 27488012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96787, 193574, 387148, 483935, 967870, 1064657, 1935740, 2129314, 4258628, 5323285, 10646570, 21293140]

約数ペア:

[(1, 21293140), (2, 10646570), (4, 5323285), (5, 4258628), (10, 2129314), (11, 1935740), (20, 1064657), (22, 967870), (44, 483935), (55, 387148), (110, 193574), (220, 96787)]