221036207

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{110023}}^1$

素因数の和:110078

約数の個数: 12

約数和(自身を含む): 263397456

約数和(自身を除く): 42361249

約数列:

[1, 7, 41, 49, 287, 2009, 110023, 770161, 4510943, 5391127, 31576601, 221036207]

約数ペア:

[(1, 221036207), (7, 31576601), (41, 5391127), (49, 4510943), (287, 770161), (2009, 110023)]