205979501

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 260375808

約数和(自身を除く): 54396307

約数列:

[1, 7, 13, 73, 91, 101, 307, 511, 707, 949, 1313, 2149, 3991, 6643, 7373, 9191, 22411, 27937, 31007, 51611, 95849, 156877, 217049, 291343, 403091, 670943, 2039401, 2263511, 2821637, 15844577, 29425643, 205979501]

約数ペア:

[(1, 205979501), (7, 29425643), (13, 15844577), (73, 2821637), (91, 2263511), (101, 2039401), (307, 670943), (511, 403091), (707, 291343), (949, 217049), (1313, 156877), (2149, 95849), (3991, 51611), (6643, 31007), (7373, 27937), (9191, 22411)]