16680727

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:116

約数の個数: 36

約数和(自身を含む): 21890736

約数和(自身を除く): 5210009

約数列:

[1, 7, 19, 23, 41, 49, 133, 161, 287, 361, 437, 779, 931, 943, 1127, 2009, 2527, 3059, 5453, 6601, 8303, 14801, 17689, 17917, 21413, 38171, 46207, 58121, 103607, 125419, 340423, 406847, 725249, 877933, 2382961, 16680727]

約数ペア:

[(1, 16680727), (7, 2382961), (19, 877933), (23, 725249), (41, 406847), (49, 340423), (133, 125419), (161, 103607), (287, 58121), (361, 46207), (437, 38171), (779, 21413), (931, 17917), (943, 17689), (1127, 14801), (2009, 8303), (2527, 6601), (3059, 5453)]