20591193

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51607}}^1$

素因数の和:51636

約数の個数: 16

約数和(自身を含む): 33029120

約数和(自身を除く): 12437927

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51607, 154821, 361249, 980533, 1083747, 2941599, 6863731, 20591193]

約数ペア:

[(1, 20591193), (3, 6863731), (7, 2941599), (19, 1083747), (21, 980533), (57, 361249), (133, 154821), (399, 51607)]