642159009

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{134371}}^1$

素因数の和:134442

約数の個数: 20

約数和(自身を含む): 975540720

約数和(自身を除く): 333381711

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 134371, 403113, 1209339, 3628017, 7927889, 10884051, 23783667, 71351001, 214053003, 642159009]

約数ペア:

[(1, 642159009), (3, 214053003), (9, 71351001), (27, 23783667), (59, 10884051), (81, 7927889), (177, 3628017), (531, 1209339), (1593, 403113), (4779, 134371)]