21684544

素因数分解:

$2^6\times 7^1\times {\mathrm{97}}^1\times {\mathrm{499}}^1$

素因数の和:615

約数の個数: 56

約数和(自身を含む): 49784000

約数和(自身を除く): 28099456

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 97, 112, 194, 224, 388, 448, 499, 679, 776, 998, 1358, 1552, 1996, 2716, 3104, 3493, 3992, 5432, 6208, 6986, 7984, 10864, 13972, 15968, 21728, 27944, 31936, 43456, 48403, 55888, 96806, 111776, 193612, 223552, 338821, 387224, 677642, 774448, 1355284, 1548896, 2710568, 3097792, 5421136, 10842272, 21684544]

約数ペア:

[(1, 21684544), (2, 10842272), (4, 5421136), (7, 3097792), (8, 2710568), (14, 1548896), (16, 1355284), (28, 774448), (32, 677642), (56, 387224), (64, 338821), (97, 223552), (112, 193612), (194, 111776), (224, 96806), (388, 55888), (448, 48403), (499, 43456), (679, 31936), (776, 27944), (998, 21728), (1358, 15968), (1552, 13972), (1996, 10864), (2716, 7984), (3104, 6986), (3493, 6208), (3992, 5432)]