18791608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11239}}^1$

素因数の和:11275

約数の個数: 32

約数和(自身を含む): 40464000

約数和(自身を除く): 21672392

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 11239, 22478, 44956, 89912, 123629, 213541, 247258, 427082, 494516, 854164, 989032, 1708328, 2348951, 4697902, 9395804, 18791608]

約数ペア:

[(1, 18791608), (2, 9395804), (4, 4697902), (8, 2348951), (11, 1708328), (19, 989032), (22, 854164), (38, 494516), (44, 427082), (76, 247258), (88, 213541), (152, 123629), (209, 89912), (418, 44956), (836, 22478), (1672, 11239)]