20156907

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{383}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 27537408

約数和(自身を除く): 7380501

約数列:

[1, 3, 53, 159, 331, 383, 993, 1149, 17543, 20299, 52629, 60897, 126773, 380319, 6718969, 20156907]

約数ペア:

[(1, 20156907), (3, 6718969), (53, 380319), (159, 126773), (331, 60897), (383, 52629), (993, 20299), (1149, 17543)]