64966643

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 80174592

約数和(自身を除く): 15207949

約数列:

[1, 7, 19, 47, 133, 329, 361, 547, 893, 2527, 3829, 6251, 10393, 16967, 25709, 72751, 118769, 179963, 197467, 488471, 1382269, 3419297, 9280949, 64966643]

約数ペア:

[(1, 64966643), (7, 9280949), (19, 3419297), (47, 1382269), (133, 488471), (329, 197467), (361, 179963), (547, 118769), (893, 72751), (2527, 25709), (3829, 16967), (6251, 10393)]