128577141

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 237025152

約数和(自身を除く): 108448011

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 121, 167, 231, 303, 363, 501, 693, 707, 847, 909, 1089, 1111, 1169, 1503, 1837, 2121, 2541, 3333, 3507, 5511, 6363, 7623, 7777, 9999, 10521, 12221, 12859, 16533, 16867, 20207, 23331, 36663, 38577, 50601, 60621, 69993, 85547, 109989, 115731, 118069, 141449, 151803, 181863, 185537, 256641, 354207, 424347, 556611, 769923, 1062621, 1273041, 1298759, 1669833, 2040907, 3896277, 6122721, 11688831, 14286349, 18368163, 42859047, 128577141]

約数ペア:

[(1, 128577141), (3, 42859047), (7, 18368163), (9, 14286349), (11, 11688831), (21, 6122721), (33, 3896277), (63, 2040907), (77, 1669833), (99, 1298759), (101, 1273041), (121, 1062621), (167, 769923), (231, 556611), (303, 424347), (363, 354207), (501, 256641), (693, 185537), (707, 181863), (847, 151803), (909, 141449), (1089, 118069), (1111, 115731), (1169, 109989), (1503, 85547), (1837, 69993), (2121, 60621), (2541, 50601), (3333, 38577), (3507, 36663), (5511, 23331), (6363, 20207), (7623, 16867), (7777, 16533), (9999, 12859), (10521, 12221)]