21347854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 36080640

約数和(自身を除く): 14732786

約数列:

[1, 2, 11, 22, 71, 79, 142, 158, 173, 346, 781, 869, 1562, 1738, 1903, 3806, 5609, 11218, 12283, 13667, 24566, 27334, 61699, 123398, 135113, 150337, 270226, 300674, 970357, 1940714, 10673927, 21347854]

約数ペア:

[(1, 21347854), (2, 10673927), (11, 1940714), (22, 970357), (71, 300674), (79, 270226), (142, 150337), (158, 135113), (173, 123398), (346, 61699), (781, 27334), (869, 24566), (1562, 13667), (1738, 12283), (1903, 11218), (3806, 5609)]