18971864

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{701}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 37908000

約数和(自身を除く): 18936136

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 199, 398, 701, 796, 1402, 1592, 2804, 3383, 5608, 6766, 11917, 13532, 23834, 27064, 47668, 95336, 139499, 278998, 557996, 1115992, 2371483, 4742966, 9485932, 18971864]

約数ペア:

[(1, 18971864), (2, 9485932), (4, 4742966), (8, 2371483), (17, 1115992), (34, 557996), (68, 278998), (136, 139499), (199, 95336), (398, 47668), (701, 27064), (796, 23834), (1402, 13532), (1592, 11917), (2804, 6766), (3383, 5608)]