21463844

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2591}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 18452956

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 2591, 4142, 5182, 8284, 10364, 49229, 98458, 196916, 282419, 564838, 1129676, 5365961, 10731922, 21463844]

約数ペア:

[(1, 21463844), (2, 10731922), (4, 5365961), (19, 1129676), (38, 564838), (76, 282419), (109, 196916), (218, 98458), (436, 49229), (2071, 10364), (2591, 8284), (4142, 5182)]