21781570707

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{62055757}}^1$

素因数の和:62055779

約数の個数: 16

約数和(自身を含む): 34751224480

約数和(自身を除く): 12969653773

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 62055757, 186167271, 558501813, 806724841, 1675505439, 2420174523, 7260523569, 21781570707]

約数ペア:

[(1, 21781570707), (3, 7260523569), (9, 2420174523), (13, 1675505439), (27, 806724841), (39, 558501813), (117, 186167271), (351, 62055757)]