21682609

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 24321024

約数和(自身を除く): 2638415

約数列:

[1, 13, 31, 173, 311, 403, 2249, 4043, 5363, 9641, 53803, 69719, 125333, 699439, 1667893, 21682609]

約数ペア:

[(1, 21682609), (13, 1667893), (31, 699439), (173, 125333), (311, 69719), (403, 53803), (2249, 9641), (4043, 5363)]