28691474

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 50409216

約数和(自身を除く): 21717742

約数列:

[1, 2, 7, 14, 101, 103, 197, 202, 206, 394, 707, 721, 1379, 1414, 1442, 2758, 10403, 19897, 20291, 20806, 39794, 40582, 72821, 139279, 142037, 145642, 278558, 284074, 2049391, 4098782, 14345737, 28691474]

約数ペア:

[(1, 28691474), (2, 14345737), (7, 4098782), (14, 2049391), (101, 284074), (103, 278558), (197, 145642), (202, 142037), (206, 139279), (394, 72821), (707, 40582), (721, 39794), (1379, 20806), (1414, 20291), (1442, 19897), (2758, 10403)]