278314179

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{8887}}^1$

素因数の和:8987

約数の個数: 32

約数和(自身を含む): 441982464

約数和(自身を除く): 163668285

約数列:

[1, 3, 11, 13, 33, 39, 73, 143, 219, 429, 803, 949, 2409, 2847, 8887, 10439, 26661, 31317, 97757, 115531, 293271, 346593, 648751, 1270841, 1946253, 3812523, 7136261, 8433763, 21408783, 25301289, 92771393, 278314179]

約数ペア:

[(1, 278314179), (3, 92771393), (11, 25301289), (13, 21408783), (33, 8433763), (39, 7136261), (73, 3812523), (143, 1946253), (219, 1270841), (429, 648751), (803, 346593), (949, 293271), (2409, 115531), (2847, 97757), (8887, 31317), (10439, 26661)]