18615561

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 27433728

約数和(自身を除く): 8818167

約数列:

[1, 3, 17, 51, 53, 71, 97, 159, 213, 291, 901, 1207, 1649, 2703, 3621, 3763, 4947, 5141, 6887, 11289, 15423, 20661, 63971, 87397, 117079, 191913, 262191, 351237, 365011, 1095033, 6205187, 18615561]

約数ペア:

[(1, 18615561), (3, 6205187), (17, 1095033), (51, 365011), (53, 351237), (71, 262191), (97, 191913), (159, 117079), (213, 87397), (291, 63971), (901, 20661), (1207, 15423), (1649, 11289), (2703, 6887), (3621, 5141), (3763, 4947)]