19937390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{859}}^1$

素因数の和:1088

約数の個数: 32

約数和(自身を含む): 39381120

約数和(自身を除く): 19443730

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 211, 422, 859, 1055, 1718, 2110, 2321, 4295, 4642, 8590, 9449, 11605, 18898, 23210, 47245, 94490, 181249, 362498, 906245, 1812490, 1993739, 3987478, 9968695, 19937390]

約数ペア:

[(1, 19937390), (2, 9968695), (5, 3987478), (10, 1993739), (11, 1812490), (22, 906245), (55, 362498), (110, 181249), (211, 94490), (422, 47245), (859, 23210), (1055, 18898), (1718, 11605), (2110, 9449), (2321, 8590), (4295, 4642)]