28249209

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 15089031

約数列:

[1, 3, 9, 27, 47, 113, 141, 197, 339, 423, 591, 1017, 1269, 1773, 3051, 5311, 5319, 9259, 15933, 22261, 27777, 47799, 66783, 83331, 143397, 200349, 249993, 601047, 1046267, 3138801, 9416403, 28249209]

約数ペア:

[(1, 28249209), (3, 9416403), (9, 3138801), (27, 1046267), (47, 601047), (113, 249993), (141, 200349), (197, 143397), (339, 83331), (423, 66783), (591, 47799), (1017, 27777), (1269, 22261), (1773, 15933), (3051, 9259), (5311, 5319)]