19866368

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1093}}^1$

素因数の和:1180

約数の個数: 36

約数和(自身を含む): 40250448

約数和(自身を除く): 20384080

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1093, 1136, 2186, 2272, 4372, 4544, 8744, 9088, 17488, 18176, 34976, 69952, 77603, 139904, 155206, 279808, 310412, 620824, 1241648, 2483296, 4966592, 9933184, 19866368]

約数ペア:

[(1, 19866368), (2, 9933184), (4, 4966592), (8, 2483296), (16, 1241648), (32, 620824), (64, 310412), (71, 279808), (128, 155206), (142, 139904), (256, 77603), (284, 69952), (568, 34976), (1093, 18176), (1136, 17488), (2186, 9088), (2272, 8744), (4372, 4544)]