20970783

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 31284240

約数和(自身を除く): 10313457

約数列:

[1, 3, 9, 59, 73, 177, 219, 531, 541, 657, 1623, 4307, 4869, 12921, 31919, 38763, 39493, 95757, 118479, 287271, 355437, 2330087, 6990261, 20970783]

約数ペア:

[(1, 20970783), (3, 6990261), (9, 2330087), (59, 355437), (73, 287271), (177, 118479), (219, 95757), (531, 39493), (541, 38763), (657, 31919), (1623, 12921), (4307, 4869)]