18642844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{661}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 35700336

約数和(自身を除く): 17057492

約数列:

[1, 2, 4, 11, 22, 44, 641, 661, 1282, 1322, 2564, 2644, 7051, 7271, 14102, 14542, 28204, 29084, 423701, 847402, 1694804, 4660711, 9321422, 18642844]

約数ペア:

[(1, 18642844), (2, 9321422), (4, 4660711), (11, 1694804), (22, 847402), (44, 423701), (641, 29084), (661, 28204), (1282, 14542), (1322, 14102), (2564, 7271), (2644, 7051)]