21689243

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 1728613

約数列:

[1, 31, 43, 53, 307, 1333, 1643, 2279, 9517, 13201, 16271, 70649, 409231, 504401, 699653, 21689243]

約数ペア:

[(1, 21689243), (31, 699653), (43, 504401), (53, 409231), (307, 70649), (1333, 16271), (1643, 13201), (2279, 9517)]