20910339

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{103}}^2$

素因数の和:288

約数の個数: 24

約数和(自身を含む): 31710480

約数和(自身を除く): 10800141

約数列:

[1, 3, 9, 27, 73, 103, 219, 309, 657, 927, 1971, 2781, 7519, 10609, 22557, 31827, 67671, 95481, 203013, 286443, 774457, 2323371, 6970113, 20910339]

約数ペア:

[(1, 20910339), (3, 6970113), (9, 2323371), (27, 774457), (73, 286443), (103, 203013), (219, 95481), (309, 67671), (657, 31827), (927, 22557), (1971, 10609), (2781, 7519)]