220520079

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{25819}}^1$

素因数の和:25911

約数の個数: 24

約数和(自身を含む): 347743760

約数和(自身を除く): 127223681

約数列:

[1, 3, 9, 13, 39, 73, 117, 219, 657, 949, 2847, 8541, 25819, 77457, 232371, 335647, 1006941, 1884787, 3020823, 5654361, 16963083, 24502231, 73506693, 220520079]

約数ペア:

[(1, 220520079), (3, 73506693), (9, 24502231), (13, 16963083), (39, 5654361), (73, 3020823), (117, 1884787), (219, 1006941), (657, 335647), (949, 232371), (2847, 77457), (8541, 25819)]