19005605109

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{29742731}}^1$

素因数の和:29742808

約数の個数: 12

約数和(自身を含む): 27839197152

約数和(自身を除く): 8833592043

約数列:

[1, 3, 9, 71, 213, 639, 29742731, 89228193, 267684579, 2111733901, 6335201703, 19005605109]

約数ペア:

[(1, 19005605109), (3, 6335201703), (9, 2111733901), (71, 267684579), (213, 89228193), (639, 29742731)]