20514512

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:603

約数の個数: 40

約数和(自身を含む): 42408000

約数和(自身を除く): 21893488

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 199, 272, 379, 398, 758, 796, 1516, 1592, 3032, 3184, 3383, 6064, 6443, 6766, 12886, 13532, 25772, 27064, 51544, 54128, 75421, 103088, 150842, 301684, 603368, 1206736, 1282157, 2564314, 5128628, 10257256, 20514512]

約数ペア:

[(1, 20514512), (2, 10257256), (4, 5128628), (8, 2564314), (16, 1282157), (17, 1206736), (34, 603368), (68, 301684), (136, 150842), (199, 103088), (272, 75421), (379, 54128), (398, 51544), (758, 27064), (796, 25772), (1516, 13532), (1592, 12886), (3032, 6766), (3184, 6443), (3383, 6064)]