128216109

素因数分解:

$3^1\times 7^1\times {\mathrm{2221}}^1\times {\mathrm{2749}}^1$

素因数の和:4980

約数の個数: 16

約数和(自身を含む): 195536000

約数和(自身を除く): 67319891

約数列:

[1, 3, 7, 21, 2221, 2749, 6663, 8247, 15547, 19243, 46641, 57729, 6105529, 18316587, 42738703, 128216109]

約数ペア:

[(1, 128216109), (3, 42738703), (7, 18316587), (21, 6105529), (2221, 57729), (2749, 46641), (6663, 19243), (8247, 15547)]