21722391

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:292

約数の個数: 32

約数和(自身を含む): 33246720

約数和(自身を除く): 11524329

約数列:

[1, 3, 9, 27, 73, 103, 107, 219, 309, 321, 657, 927, 963, 1971, 2781, 2889, 7519, 7811, 11021, 22557, 23433, 33063, 67671, 70299, 99189, 203013, 210897, 297567, 804533, 2413599, 7240797, 21722391]

約数ペア:

[(1, 21722391), (3, 7240797), (9, 2413599), (27, 804533), (73, 297567), (103, 210897), (107, 203013), (219, 99189), (309, 70299), (321, 67671), (657, 33063), (927, 23433), (963, 22557), (1971, 11021), (2781, 7811), (2889, 7519)]