20402556723

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{12387709}}^1$

素因数の和:12387779

約数の個数: 16

約数和(自身を含む): 30721520800

約数和(自身を除く): 10318964077

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 12387709, 37163127, 111489381, 334468143, 755650249, 2266950747, 6800852241, 20402556723]

約数ペア:

[(1, 20402556723), (3, 6800852241), (9, 2266950747), (27, 755650249), (61, 334468143), (183, 111489381), (549, 37163127), (1647, 12387709)]