17818918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 29919456

約数和(自身を除く): 12100538

約数列:

[1, 2, 13, 26, 53, 67, 106, 134, 193, 386, 689, 871, 1378, 1742, 2509, 3551, 5018, 7102, 10229, 12931, 20458, 25862, 46163, 92326, 132977, 168103, 265954, 336206, 685343, 1370686, 8909459, 17818918]

約数ペア:

[(1, 17818918), (2, 8909459), (13, 1370686), (26, 685343), (53, 336206), (67, 265954), (106, 168103), (134, 132977), (193, 92326), (386, 46163), (689, 25862), (871, 20458), (1378, 12931), (1742, 10229), (2509, 7102), (3551, 5018)]