21039051

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17231}}^1$

素因数の和:17282

約数の個数: 16

約数和(自身を含む): 31431168

約数和(自身を除く): 10392117

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17231, 51693, 189541, 568623, 637547, 1912641, 7013017, 21039051]

約数ペア:

[(1, 21039051), (3, 7013017), (11, 1912641), (33, 637547), (37, 568623), (111, 189541), (407, 51693), (1221, 17231)]