220770921

素因数分解:

$3^1\times 7^3\times {\mathrm{103}}^1\times {\mathrm{2083}}^1$

素因数の和:2210

約数の個数: 32

約数和(自身を含む): 346777600

約数和(自身を除く): 126006679

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 343, 721, 1029, 2083, 2163, 5047, 6249, 14581, 15141, 35329, 43743, 102067, 105987, 214549, 306201, 643647, 714469, 1501843, 2143407, 4505529, 10512901, 31538703, 73590307, 220770921]

約数ペア:

[(1, 220770921), (3, 73590307), (7, 31538703), (21, 10512901), (49, 4505529), (103, 2143407), (147, 1501843), (309, 714469), (343, 643647), (721, 306201), (1029, 214549), (2083, 105987), (2163, 102067), (5047, 43743), (6249, 35329), (14581, 15141)]