21069176

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1429}}^1$

素因数の和:1551

約数の個数: 32

約数和(自身を含む): 42042000

約数和(自身を除く): 20972824

約数列:

[1, 2, 4, 8, 19, 38, 76, 97, 152, 194, 388, 776, 1429, 1843, 2858, 3686, 5716, 7372, 11432, 14744, 27151, 54302, 108604, 138613, 217208, 277226, 554452, 1108904, 2633647, 5267294, 10534588, 21069176]

約数ペア:

[(1, 21069176), (2, 10534588), (4, 5267294), (8, 2633647), (19, 1108904), (38, 554452), (76, 277226), (97, 217208), (152, 138613), (194, 108604), (388, 54302), (776, 27151), (1429, 14744), (1843, 11432), (2858, 7372), (3686, 5716)]