18512912

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{359}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 39372480

約数和(自身を除く): 20859568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 293, 359, 586, 718, 1172, 1436, 2344, 2872, 3223, 3949, 4688, 5744, 6446, 7898, 12892, 15796, 25784, 31592, 51568, 63184, 105187, 210374, 420748, 841496, 1157057, 1682992, 2314114, 4628228, 9256456, 18512912]

約数ペア:

[(1, 18512912), (2, 9256456), (4, 4628228), (8, 2314114), (11, 1682992), (16, 1157057), (22, 841496), (44, 420748), (88, 210374), (176, 105187), (293, 63184), (359, 51568), (586, 31592), (718, 25784), (1172, 15796), (1436, 12892), (2344, 7898), (2872, 6446), (3223, 5744), (3949, 4688)]