9978957

素因数分解:

$3^4\times {\mathrm{349}}^1\times {\mathrm{353}}^1$

素因数の和:714

約数の個数: 20

約数和(自身を含む): 14991900

約数和(自身を除く): 5012943

約数列:

[1, 3, 9, 27, 81, 349, 353, 1047, 1059, 3141, 3177, 9423, 9531, 28269, 28593, 123197, 369591, 1108773, 3326319, 9978957]

約数ペア:

[(1, 9978957), (3, 3326319), (9, 1108773), (27, 369591), (81, 123197), (349, 28593), (353, 28269), (1047, 9531), (1059, 9423), (3141, 3177)]