20686862

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 36633600

約数和(自身を除く): 15946738

約数列:

[1, 2, 7, 14, 47, 94, 149, 211, 298, 329, 422, 658, 1043, 1477, 2086, 2954, 7003, 9917, 14006, 19834, 31439, 49021, 62878, 69419, 98042, 138838, 220073, 440146, 1477633, 2955266, 10343431, 20686862]

約数ペア:

[(1, 20686862), (2, 10343431), (7, 2955266), (14, 1477633), (47, 440146), (94, 220073), (149, 138838), (211, 98042), (298, 69419), (329, 62878), (422, 49021), (658, 31439), (1043, 19834), (1477, 14006), (2086, 9917), (2954, 7003)]