128991741

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 185303040

約数和(自身を除く): 56311299

約数列:

[1, 3, 19, 57, 103, 127, 173, 309, 381, 519, 1957, 2413, 3287, 5871, 7239, 9861, 13081, 17819, 21971, 39243, 53457, 65913, 248539, 338561, 417449, 745617, 1015683, 1252347, 2263013, 6789039, 42997247, 128991741]

約数ペア:

[(1, 128991741), (3, 42997247), (19, 6789039), (57, 2263013), (103, 1252347), (127, 1015683), (173, 745617), (309, 417449), (381, 338561), (519, 248539), (1957, 65913), (2413, 53457), (3287, 39243), (5871, 21971), (7239, 17819), (9861, 13081)]