18313407

素因数分解:

$3^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:468

約数の個数: 36

約数和(自身を含む): 31104216

約数和(自身を除く): 12790809

約数列:

[1, 3, 7, 9, 21, 49, 63, 131, 147, 317, 393, 441, 917, 951, 1179, 2219, 2751, 2853, 6419, 6657, 8253, 15533, 19257, 19971, 41527, 46599, 57771, 124581, 139797, 290689, 373743, 872067, 2034823, 2616201, 6104469, 18313407]

約数ペア:

[(1, 18313407), (3, 6104469), (7, 2616201), (9, 2034823), (21, 872067), (49, 373743), (63, 290689), (131, 139797), (147, 124581), (317, 57771), (393, 46599), (441, 41527), (917, 19971), (951, 19257), (1179, 15533), (2219, 8253), (2751, 6657), (2853, 6419)]