21995640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61099}}^1$

素因数の和:61116

約数の個数: 48

約数和(自身を含む): 71487000

約数和(自身を除く): 49491360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 61099, 122198, 183297, 244396, 305495, 366594, 488792, 549891, 610990, 733188, 916485, 1099782, 1221980, 1466376, 1832970, 2199564, 2443960, 2749455, 3665940, 4399128, 5498910, 7331880, 10997820, 21995640]

約数ペア:

[(1, 21995640), (2, 10997820), (3, 7331880), (4, 5498910), (5, 4399128), (6, 3665940), (8, 2749455), (9, 2443960), (10, 2199564), (12, 1832970), (15, 1466376), (18, 1221980), (20, 1099782), (24, 916485), (30, 733188), (36, 610990), (40, 549891), (45, 488792), (60, 366594), (72, 305495), (90, 244396), (120, 183297), (180, 122198), (360, 61099)]