20656342

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1609}}^1$

素因数の和:1756

約数の個数: 24

約数和(自身を含む): 36340920

約数和(自身を除く): 15684578

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 917, 1609, 1834, 3218, 6419, 11263, 12838, 22526, 78841, 157682, 210779, 421558, 1475453, 2950906, 10328171, 20656342]

約数ペア:

[(1, 20656342), (2, 10328171), (7, 2950906), (14, 1475453), (49, 421558), (98, 210779), (131, 157682), (262, 78841), (917, 22526), (1609, 12838), (1834, 11263), (3218, 6419)]