21830510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5417}}^1$

素因数の和:5468

約数の個数: 32

約数和(自身を含む): 43690752

約数和(自身を除く): 21860242

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5417, 10834, 27085, 54170, 70421, 140842, 167927, 335854, 352105, 704210, 839635, 1679270, 2183051, 4366102, 10915255, 21830510]

約数ペア:

[(1, 21830510), (2, 10915255), (5, 4366102), (10, 2183051), (13, 1679270), (26, 839635), (31, 704210), (62, 352105), (65, 335854), (130, 167927), (155, 140842), (310, 70421), (403, 54170), (806, 27085), (2015, 10834), (4030, 5417)]