18626992

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{863}}^1$

素因数の和:961

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19941968

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 284, 304, 568, 863, 1136, 1349, 1726, 2698, 3452, 5396, 6904, 10792, 13808, 16397, 21584, 32794, 61273, 65588, 122546, 131176, 245092, 262352, 490184, 980368, 1164187, 2328374, 4656748, 9313496, 18626992]

約数ペア:

[(1, 18626992), (2, 9313496), (4, 4656748), (8, 2328374), (16, 1164187), (19, 980368), (38, 490184), (71, 262352), (76, 245092), (142, 131176), (152, 122546), (284, 65588), (304, 61273), (568, 32794), (863, 21584), (1136, 16397), (1349, 13808), (1726, 10792), (2698, 6904), (3452, 5396)]