205964689

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:865

約数の個数: 24

約数和(自身を含む): 247376808

約数和(自身を除く): 41412119

約数列:

[1, 7, 41, 49, 157, 287, 653, 1099, 2009, 4571, 6437, 7693, 26773, 31997, 45059, 102521, 187411, 315413, 717647, 1311877, 4203361, 5023529, 29423527, 205964689]

約数ペア:

[(1, 205964689), (7, 29423527), (41, 5023529), (49, 4203361), (157, 1311877), (287, 717647), (653, 315413), (1099, 187411), (2009, 102521), (4571, 45059), (6437, 31997), (7693, 26773)]