19742658

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1993}}^1$

素因数の和:2138

約数の個数: 32

約数和(自身を含む): 42878976

約数和(自身を除く): 23136318

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 127, 254, 381, 762, 1651, 1993, 3302, 3986, 4953, 5979, 9906, 11958, 25909, 51818, 77727, 155454, 253111, 506222, 759333, 1518666, 3290443, 6580886, 9871329, 19742658]

約数ペア:

[(1, 19742658), (2, 9871329), (3, 6580886), (6, 3290443), (13, 1518666), (26, 759333), (39, 506222), (78, 253111), (127, 155454), (254, 77727), (381, 51818), (762, 25909), (1651, 11958), (1993, 9906), (3302, 5979), (3986, 4953)]