20646465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6343}}^1$

素因数の和:6389

約数の個数: 32

約数和(自身を含む): 38977536

約数和(自身を除く): 18331071

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6343, 19029, 31715, 44401, 95145, 133203, 196633, 222005, 589899, 666015, 983165, 1376431, 2949495, 4129293, 6882155, 20646465]

約数ペア:

[(1, 20646465), (3, 6882155), (5, 4129293), (7, 2949495), (15, 1376431), (21, 983165), (31, 666015), (35, 589899), (93, 222005), (105, 196633), (155, 133203), (217, 95145), (465, 44401), (651, 31715), (1085, 19029), (3255, 6343)]