21287784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{126713}}^1$

素因数の和:126729

約数の個数: 32

約数和(自身を含む): 60822720

約数和(自身を除く): 39534936

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 126713, 253426, 380139, 506852, 760278, 886991, 1013704, 1520556, 1773982, 2660973, 3041112, 3547964, 5321946, 7095928, 10643892, 21287784]

約数ペア:

[(1, 21287784), (2, 10643892), (3, 7095928), (4, 5321946), (6, 3547964), (7, 3041112), (8, 2660973), (12, 1773982), (14, 1520556), (21, 1013704), (24, 886991), (28, 760278), (42, 506852), (56, 380139), (84, 253426), (168, 126713)]