20990242

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{115331}}^1$

素因数の和:115353

約数の個数: 16

約数和(自身を含む): 38751552

約数和(自身を除く): 17761310

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 115331, 230662, 807317, 1499303, 1614634, 2998606, 10495121, 20990242]

約数ペア:

[(1, 20990242), (2, 10495121), (7, 2998606), (13, 1614634), (14, 1499303), (26, 807317), (91, 230662), (182, 115331)]