21166564

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{3209}}^1$

素因数の和:3327

約数の個数: 24

約数和(自身を含む): 39637080

約数和(自身を除く): 18470516

約数列:

[1, 2, 4, 17, 34, 68, 97, 194, 388, 1649, 3209, 3298, 6418, 6596, 12836, 54553, 109106, 218212, 311273, 622546, 1245092, 5291641, 10583282, 21166564]

約数ペア:

[(1, 21166564), (2, 10583282), (4, 5291641), (17, 1245092), (34, 622546), (68, 311273), (97, 218212), (194, 109106), (388, 54553), (1649, 12836), (3209, 6596), (3298, 6418)]