638533718

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{89909}}^1$

素因数の和:90031

約数の個数: 16

約数和(自身を含む): 990448560

約数和(自身を除く): 351914842

約数列:

[1, 2, 53, 67, 106, 134, 3551, 7102, 89909, 179818, 4765177, 6023903, 9530354, 12047806, 319266859, 638533718]

約数ペア:

[(1, 638533718), (2, 319266859), (53, 12047806), (67, 9530354), (106, 6023903), (134, 4765177), (3551, 179818), (7102, 89909)]