19739907

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 33931872

約数和(自身を除く): 14191965

約数列:

[1, 3, 9, 11, 17, 33, 37, 51, 99, 111, 153, 187, 317, 333, 407, 561, 629, 951, 1221, 1683, 1887, 2853, 3487, 3663, 5389, 5661, 6919, 10461, 11729, 16167, 20757, 31383, 35187, 48501, 59279, 62271, 105561, 129019, 177837, 199393, 387057, 533511, 598179, 1161171, 1794537, 2193323, 6579969, 19739907]

約数ペア:

[(1, 19739907), (3, 6579969), (9, 2193323), (11, 1794537), (17, 1161171), (33, 598179), (37, 533511), (51, 387057), (99, 199393), (111, 177837), (153, 129019), (187, 105561), (317, 62271), (333, 59279), (407, 48501), (561, 35187), (629, 31383), (951, 20757), (1221, 16167), (1683, 11729), (1887, 10461), (2853, 6919), (3487, 5661), (3663, 5389)]