21776888

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 49862400

約数和(自身を除く): 28085512

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 97, 133, 152, 194, 211, 266, 388, 422, 532, 679, 776, 844, 1064, 1358, 1477, 1688, 1843, 2716, 2954, 3686, 4009, 5432, 5908, 7372, 8018, 11816, 12901, 14744, 16036, 20467, 25802, 28063, 32072, 40934, 51604, 56126, 81868, 103208, 112252, 143269, 163736, 224504, 286538, 388873, 573076, 777746, 1146152, 1555492, 2722111, 3110984, 5444222, 10888444, 21776888]

約数ペア:

[(1, 21776888), (2, 10888444), (4, 5444222), (7, 3110984), (8, 2722111), (14, 1555492), (19, 1146152), (28, 777746), (38, 573076), (56, 388873), (76, 286538), (97, 224504), (133, 163736), (152, 143269), (194, 112252), (211, 103208), (266, 81868), (388, 56126), (422, 51604), (532, 40934), (679, 32072), (776, 28063), (844, 25802), (1064, 20467), (1358, 16036), (1477, 14744), (1688, 12901), (1843, 11816), (2716, 8018), (2954, 7372), (3686, 5908), (4009, 5432)]