21465240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178877}}^1$

素因数の和:178891

約数の個数: 32

約数和(自身を含む): 64396080

約数和(自身を除く): 42930840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178877, 357754, 536631, 715508, 894385, 1073262, 1431016, 1788770, 2146524, 2683155, 3577540, 4293048, 5366310, 7155080, 10732620, 21465240]

約数ペア:

[(1, 21465240), (2, 10732620), (3, 7155080), (4, 5366310), (5, 4293048), (6, 3577540), (8, 2683155), (10, 2146524), (12, 1788770), (15, 1431016), (20, 1073262), (24, 894385), (30, 715508), (40, 536631), (60, 357754), (120, 178877)]