870801981

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{54347}}^1$

素因数の和:54473

約数の個数: 24

約数和(自身を含む): 1363047840

約数和(自身を除く): 492245859

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 16023, 54347, 163041, 380429, 1141287, 2663003, 5923823, 7989009, 17771469, 41466761, 124400283, 290267327, 870801981]

約数ペア:

[(1, 870801981), (3, 290267327), (7, 124400283), (21, 41466761), (49, 17771469), (109, 7989009), (147, 5923823), (327, 2663003), (763, 1141287), (2289, 380429), (5341, 163041), (16023, 54347)]