20427071

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 25732080

約数和(自身を除く): 5305009

約数列:

[1, 7, 19, 37, 49, 133, 259, 593, 703, 931, 1813, 4151, 4921, 11267, 21941, 29057, 34447, 78869, 153587, 416879, 552083, 1075109, 2918153, 20427071]

約数ペア:

[(1, 20427071), (7, 2918153), (19, 1075109), (37, 552083), (49, 416879), (133, 153587), (259, 78869), (593, 34447), (703, 29057), (931, 21941), (1813, 11267), (4151, 4921)]