18636620

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1427}}^1$

素因数の和:2089

約数の個数: 24

約数和(自身を含む): 39224304

約数和(自身を除く): 20587684

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1427, 2612, 2854, 3265, 5708, 6530, 7135, 13060, 14270, 28540, 931831, 1863662, 3727324, 4659155, 9318310, 18636620]

約数ペア:

[(1, 18636620), (2, 9318310), (4, 4659155), (5, 3727324), (10, 1863662), (20, 931831), (653, 28540), (1306, 14270), (1427, 13060), (2612, 7135), (2854, 6530), (3265, 5708)]