20259356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7351}}^1$

素因数の和:7421

約数の個数: 24

約数和(自身を含む): 38906784

約数和(自身を除く): 18647428

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7351, 14702, 29404, 95563, 191126, 382252, 389603, 779206, 1558412, 5064839, 10129678, 20259356]

約数ペア:

[(1, 20259356), (2, 10129678), (4, 5064839), (13, 1558412), (26, 779206), (52, 389603), (53, 382252), (106, 191126), (212, 95563), (689, 29404), (1378, 14702), (2756, 7351)]