18156972

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 43593984

約数和(自身を除く): 25437012

約数列:

[1, 2, 3, 4, 6, 12, 71, 101, 142, 202, 211, 213, 284, 303, 404, 422, 426, 606, 633, 844, 852, 1212, 1266, 2532, 7171, 14342, 14981, 21311, 21513, 28684, 29962, 42622, 43026, 44943, 59924, 63933, 85244, 86052, 89886, 127866, 179772, 255732, 1513081, 3026162, 4539243, 6052324, 9078486, 18156972]

約数ペア:

[(1, 18156972), (2, 9078486), (3, 6052324), (4, 4539243), (6, 3026162), (12, 1513081), (71, 255732), (101, 179772), (142, 127866), (202, 89886), (211, 86052), (213, 85244), (284, 63933), (303, 59924), (404, 44943), (422, 43026), (426, 42622), (606, 29962), (633, 28684), (844, 21513), (852, 21311), (1212, 14981), (1266, 14342), (2532, 7171)]