128520231

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{2207}}^1$

素因数の和:2323

約数の個数: 32

約数和(自身を含む): 203489280

約数和(自身を除く): 74969049

約数列:

[1, 3, 7, 21, 47, 59, 141, 177, 329, 413, 987, 1239, 2207, 2773, 6621, 8319, 15449, 19411, 46347, 58233, 103729, 130213, 311187, 390639, 726103, 911491, 2178309, 2734473, 6120011, 18360033, 42840077, 128520231]

約数ペア:

[(1, 128520231), (3, 42840077), (7, 18360033), (21, 6120011), (47, 2734473), (59, 2178309), (141, 911491), (177, 726103), (329, 390639), (413, 311187), (987, 130213), (1239, 103729), (2207, 58233), (2773, 46347), (6621, 19411), (8319, 15449)]