21678566

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{383}}^1$

素因数の和:716

約数の個数: 32

約数和(自身を含む): 40255488

約数和(自身を除く): 18576922

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 311, 383, 622, 766, 2177, 2681, 4043, 4354, 4979, 5362, 8086, 9958, 28301, 34853, 56602, 69706, 119113, 238226, 833791, 1548469, 1667582, 3096938, 10839283, 21678566]

約数ペア:

[(1, 21678566), (2, 10839283), (7, 3096938), (13, 1667582), (14, 1548469), (26, 833791), (91, 238226), (182, 119113), (311, 69706), (383, 56602), (622, 34853), (766, 28301), (2177, 9958), (2681, 8086), (4043, 5362), (4354, 4979)]