17721430

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43223}}^1$

素因数の和:43271

約数の個数: 16

約数和(自身を含む): 32677344

約数和(自身を除く): 14955914

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 43223, 86446, 216115, 432230, 1772143, 3544286, 8860715, 17721430]

約数ペア:

[(1, 17721430), (2, 8860715), (5, 3544286), (10, 1772143), (41, 432230), (82, 216115), (205, 86446), (410, 43223)]