21971651

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:446

約数の個数: 16

約数和(自身を含む): 24373440

約数和(自身を除く): 2401789

約数列:

[1, 13, 61, 103, 269, 793, 1339, 3497, 6283, 16409, 27707, 81679, 213317, 360191, 1690127, 21971651]

約数ペア:

[(1, 21971651), (13, 1690127), (61, 360191), (103, 213317), (269, 81679), (793, 27707), (1339, 16409), (3497, 6283)]