21308331

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{6269}}^1$

素因数の和:6386

約数の個数: 16

約数和(自身を含む): 31299840

約数和(自身を除く): 9991509

約数列:

[1, 3, 11, 33, 103, 309, 1133, 3399, 6269, 18807, 68959, 206877, 645707, 1937121, 7102777, 21308331]

約数ペア:

[(1, 21308331), (3, 7102777), (11, 1937121), (33, 645707), (103, 206877), (309, 68959), (1133, 18807), (3399, 6269)]