20965128

素因数分解:

$2^3\times 3^1\times {\mathrm{349}}^1\times {\mathrm{2503}}^1$

素因数の和:2861

約数の個数: 32

約数和(自身を含む): 52584000

約数和(自身を除く): 31618872

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 349, 698, 1047, 1396, 2094, 2503, 2792, 4188, 5006, 7509, 8376, 10012, 15018, 20024, 30036, 60072, 873547, 1747094, 2620641, 3494188, 5241282, 6988376, 10482564, 20965128]

約数ペア:

[(1, 20965128), (2, 10482564), (3, 6988376), (4, 5241282), (6, 3494188), (8, 2620641), (12, 1747094), (24, 873547), (349, 60072), (698, 30036), (1047, 20024), (1396, 15018), (2094, 10012), (2503, 8376), (2792, 7509), (4188, 5006)]