19649872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1151}}^1$

素因数の和:1267

約数の個数: 40

約数和(自身を含む): 41997312

約数和(自身を除く): 22347440

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 97, 176, 194, 388, 776, 1067, 1151, 1552, 2134, 2302, 4268, 4604, 8536, 9208, 12661, 17072, 18416, 25322, 50644, 101288, 111647, 202576, 223294, 446588, 893176, 1228117, 1786352, 2456234, 4912468, 9824936, 19649872]

約数ペア:

[(1, 19649872), (2, 9824936), (4, 4912468), (8, 2456234), (11, 1786352), (16, 1228117), (22, 893176), (44, 446588), (88, 223294), (97, 202576), (176, 111647), (194, 101288), (388, 50644), (776, 25322), (1067, 18416), (1151, 17072), (1552, 12661), (2134, 9208), (2302, 8536), (4268, 4604)]