21274941

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{643}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 29211840

約数和(自身を除く): 7936899

約数列:

[1, 3, 41, 123, 269, 643, 807, 1929, 11029, 26363, 33087, 79089, 172967, 518901, 7091647, 21274941]

約数ペア:

[(1, 21274941), (3, 7091647), (41, 518901), (123, 172967), (269, 79089), (643, 33087), (807, 26363), (1929, 11029)]