20458011

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13721}}^1$

素因数の和:13802

約数の個数: 16

約数和(自身を含む): 31615488

約数和(自身を除く): 11157477

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13721, 41163, 96047, 288141, 974191, 2922573, 6819337, 20458011]

約数ペア:

[(1, 20458011), (3, 6819337), (7, 2922573), (21, 974191), (71, 288141), (213, 96047), (497, 41163), (1491, 13721)]