158220688521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{396543079}}^1$

素因数の和:396543108

約数の個数: 16

約数和(自身を含む): 253787571200

約数和(自身を除く): 95566882679

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 396543079, 1189629237, 2775801553, 7534318501, 8327404659, 22602955503, 52740229507, 158220688521]

約数ペア:

[(1, 158220688521), (3, 52740229507), (7, 22602955503), (19, 8327404659), (21, 7534318501), (57, 2775801553), (133, 1189629237), (399, 396543079)]