21135403

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1086

約数の個数: 16

約数和(自身を含む): 23712480

約数和(自身を除く): 2577077

約数列:

[1, 17, 29, 43, 493, 731, 997, 1247, 16949, 21199, 28913, 42871, 491521, 728807, 1243259, 21135403]

約数ペア:

[(1, 21135403), (17, 1243259), (29, 728807), (43, 491521), (493, 42871), (731, 28913), (997, 21199), (1247, 16949)]