19128681

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 13893399

約数列:

[1, 3, 9, 11, 13, 33, 39, 89, 99, 117, 143, 167, 267, 429, 501, 801, 979, 1157, 1287, 1503, 1837, 2171, 2937, 3471, 5511, 6513, 8811, 10413, 12727, 14863, 16533, 19539, 23881, 38181, 44589, 71643, 114543, 133767, 163493, 193219, 214929, 490479, 579657, 1471437, 1738971, 2125409, 6376227, 19128681]

約数ペア:

[(1, 19128681), (3, 6376227), (9, 2125409), (11, 1738971), (13, 1471437), (33, 579657), (39, 490479), (89, 214929), (99, 193219), (117, 163493), (143, 133767), (167, 114543), (267, 71643), (429, 44589), (501, 38181), (801, 23881), (979, 19539), (1157, 16533), (1287, 14863), (1503, 12727), (1837, 10413), (2171, 8811), (2937, 6513), (3471, 5511)]