20004001003

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{551363}}^1$

素因数の和:551514

約数の個数: 16

約数和(自身を含む): 23501339136

約数和(自身を除く): 3497338133

約数列:

[1, 7, 71, 73, 497, 511, 5183, 36281, 551363, 3859541, 39146773, 40249499, 274027411, 281746493, 2857714429, 20004001003]

約数ペア:

[(1, 20004001003), (7, 2857714429), (71, 281746493), (73, 274027411), (497, 40249499), (511, 39146773), (5183, 3859541), (36281, 551363)]