15201999

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{3181}}^1$

素因数の和:3252

約数の個数: 20

約数和(自身を含む): 23101320

約数和(自身を除く): 7899321

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 3181, 4779, 9543, 28629, 85887, 187679, 257661, 563037, 1689111, 5067333, 15201999]

約数ペア:

[(1, 15201999), (3, 5067333), (9, 1689111), (27, 563037), (59, 257661), (81, 187679), (177, 85887), (531, 28629), (1593, 9543), (3181, 4779)]