21982815

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2027}}^1$

素因数の和:2279

約数の個数: 24

約数和(自身を含む): 38280528

約数和(自身を除く): 16297713

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 2027, 2169, 3615, 6081, 10135, 10845, 18243, 30405, 91215, 488507, 1465521, 2442535, 4396563, 7327605, 21982815]

約数ペア:

[(1, 21982815), (3, 7327605), (5, 4396563), (9, 2442535), (15, 1465521), (45, 488507), (241, 91215), (723, 30405), (1205, 18243), (2027, 10845), (2169, 10135), (3615, 6081)]