19891784

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11897}}^1$

素因数の和:11933

約数の個数: 32

約数和(自身を含む): 42832800

約数和(自身を除く): 22941016

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 11897, 23794, 47588, 95176, 130867, 226043, 261734, 452086, 523468, 904172, 1046936, 1808344, 2486473, 4972946, 9945892, 19891784]

約数ペア:

[(1, 19891784), (2, 9945892), (4, 4972946), (8, 2486473), (11, 1808344), (19, 1046936), (22, 904172), (38, 523468), (44, 452086), (76, 261734), (88, 226043), (152, 130867), (209, 95176), (418, 47588), (836, 23794), (1672, 11897)]