1667871

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:420

約数の個数: 20

約数和(自身を含む): 2541000

約数和(自身を除く): 873129

約数列:

[1, 3, 9, 27, 59, 81, 177, 349, 531, 1047, 1593, 3141, 4779, 9423, 20591, 28269, 61773, 185319, 555957, 1667871]

約数ペア:

[(1, 1667871), (3, 555957), (9, 185319), (27, 61773), (59, 28269), (81, 20591), (177, 9423), (349, 4779), (531, 3141), (1047, 1593)]