18916389

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{13219}}^1$

素因数の和:13281

約数の個数: 16

約数和(自身を含む): 28555200

約数和(自身を除く): 9638811

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 13219, 39657, 118971, 356913, 700607, 2101821, 6305463, 18916389]

約数ペア:

[(1, 18916389), (3, 6305463), (9, 2101821), (27, 700607), (53, 356913), (159, 118971), (477, 39657), (1431, 13219)]