18881679

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{859}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 26749440

約数和(自身を除く): 7867761

約数列:

[1, 3, 17, 51, 431, 859, 1293, 2577, 7327, 14603, 21981, 43809, 370229, 1110687, 6293893, 18881679]

約数ペア:

[(1, 18881679), (3, 6293893), (17, 1110687), (51, 370229), (431, 43809), (859, 21981), (1293, 14603), (2577, 7327)]