20979324

素因数分解:

$2^2\times 3^4\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:976

約数の個数: 60

約数和(自身を含む): 55658064

約数和(自身を除く): 34678740

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 73, 81, 108, 146, 162, 219, 292, 324, 438, 657, 876, 887, 1314, 1774, 1971, 2628, 2661, 3548, 3942, 5322, 5913, 7884, 7983, 10644, 11826, 15966, 23652, 23949, 31932, 47898, 64751, 71847, 95796, 129502, 143694, 194253, 259004, 287388, 388506, 582759, 777012, 1165518, 1748277, 2331036, 3496554, 5244831, 6993108, 10489662, 20979324]

約数ペア:

[(1, 20979324), (2, 10489662), (3, 6993108), (4, 5244831), (6, 3496554), (9, 2331036), (12, 1748277), (18, 1165518), (27, 777012), (36, 582759), (54, 388506), (73, 287388), (81, 259004), (108, 194253), (146, 143694), (162, 129502), (219, 95796), (292, 71847), (324, 64751), (438, 47898), (657, 31932), (876, 23949), (887, 23652), (1314, 15966), (1774, 11826), (1971, 10644), (2628, 7983), (2661, 7884), (3548, 5913), (3942, 5322)]