18705328

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{17449}}^1$

素因数の和:17524

約数の個数: 20

約数和(自身を含む): 36784600

約数和(自身を除く): 18079272

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 17449, 34898, 69796, 139592, 279184, 1169083, 2338166, 4676332, 9352664, 18705328]

約数ペア:

[(1, 18705328), (2, 9352664), (4, 4676332), (8, 2338166), (16, 1169083), (67, 279184), (134, 139592), (268, 69796), (536, 34898), (1072, 17449)]