21324580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28817}}^1$

素因数の和:28863

約数の個数: 24

約数和(自身を含む): 45993528

約数和(自身を除く): 24668948

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28817, 57634, 115268, 144085, 288170, 576340, 1066229, 2132458, 4264916, 5331145, 10662290, 21324580]

約数ペア:

[(1, 21324580), (2, 10662290), (4, 5331145), (5, 4264916), (10, 2132458), (20, 1066229), (37, 576340), (74, 288170), (148, 144085), (185, 115268), (370, 57634), (740, 28817)]