20205159

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 30234624

約数和(自身を除く): 10029465

約数列:

[1, 3, 13, 39, 47, 73, 141, 151, 219, 453, 611, 949, 1833, 1963, 2847, 3431, 5889, 7097, 10293, 11023, 21291, 33069, 44603, 92261, 133809, 143299, 276783, 429897, 518081, 1554243, 6735053, 20205159]

約数ペア:

[(1, 20205159), (3, 6735053), (13, 1554243), (39, 518081), (47, 429897), (73, 276783), (141, 143299), (151, 133809), (219, 92261), (453, 44603), (611, 33069), (949, 21291), (1833, 11023), (1963, 10293), (2847, 7097), (3431, 5889)]