21211070

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124771}}^1$

素因数の和:124795

約数の個数: 16

約数和(自身を含む): 40426128

約数和(自身を除く): 19215058

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124771, 249542, 623855, 1247710, 2121107, 4242214, 10605535, 21211070]

約数ペア:

[(1, 21211070), (2, 10605535), (5, 4242214), (10, 2121107), (17, 1247710), (34, 623855), (85, 249542), (170, 124771)]