1640061

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:190

約数の個数: 32

約数和(自身を含む): 2688000

約数和(自身を除く): 1047939

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 139, 171, 207, 417, 437, 513, 621, 1251, 1311, 2641, 3197, 3753, 3933, 7923, 9591, 11799, 23769, 28773, 60743, 71307, 86319, 182229, 546687, 1640061]

約数ペア:

[(1, 1640061), (3, 546687), (9, 182229), (19, 86319), (23, 71307), (27, 60743), (57, 28773), (69, 23769), (139, 11799), (171, 9591), (207, 7923), (417, 3933), (437, 3753), (513, 3197), (621, 2641), (1251, 1311)]