199679991

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179407}}^1$

素因数の和:179470

約数の個数: 16

約数和(自身を含む): 310017024

約数和(自身を除く): 110337033

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 179407, 538221, 1255849, 3767547, 9508571, 28525713, 66559997, 199679991]

約数ペア:

[(1, 199679991), (3, 66559997), (7, 28525713), (21, 9508571), (53, 3767547), (159, 1255849), (371, 538221), (1113, 179407)]