261689721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{86969}}^1$

素因数の和:87048

約数の個数: 16

約数和(自身を含む): 375710400

約数和(自身を除く): 114020679

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 86969, 260907, 1478473, 4435419, 5131171, 15393513, 87229907, 261689721]

約数ペア:

[(1, 261689721), (3, 87229907), (17, 15393513), (51, 5131171), (59, 4435419), (177, 1478473), (1003, 260907), (3009, 86969)]