21327801

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13751}}^1$

素因数の和:13812

約数の個数: 16

約数和(自身を含む): 31684608

約数和(自身を除く): 10356807

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13751, 41253, 151261, 453783, 646297, 1938891, 7109267, 21327801]

約数ペア:

[(1, 21327801), (3, 7109267), (11, 1938891), (33, 646297), (47, 453783), (141, 151261), (517, 41253), (1551, 13751)]