20983963

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20963}}^1$

素因数の和:20994

約数の個数: 16

約数和(自身を含む): 28175616

約数和(自身を除く): 7191653

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20963, 146741, 230593, 272519, 1614151, 1907633, 2997709, 20983963]

約数ペア:

[(1, 20983963), (7, 2997709), (11, 1907633), (13, 1614151), (77, 272519), (91, 230593), (143, 146741), (1001, 20963)]