18273658

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 30618000

約数和(自身を除く): 12344342

約数列:

[1, 2, 13, 26, 53, 89, 106, 149, 178, 298, 689, 1157, 1378, 1937, 2314, 3874, 4717, 7897, 9434, 13261, 15794, 26522, 61321, 102661, 122642, 172393, 205322, 344786, 702833, 1405666, 9136829, 18273658]

約数ペア:

[(1, 18273658), (2, 9136829), (13, 1405666), (26, 702833), (53, 344786), (89, 205322), (106, 172393), (149, 122642), (178, 102661), (298, 61321), (689, 26522), (1157, 15794), (1378, 13261), (1937, 9434), (2314, 7897), (3874, 4717)]