21986643

素因数分解:

$3^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{929}}^1$

素因数の和:976

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 13725357

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 343, 483, 929, 1029, 1127, 2787, 3381, 6503, 7889, 19509, 21367, 23667, 45521, 64101, 136563, 149569, 318647, 448707, 955941, 1046983, 3140949, 7328881, 21986643]

約数ペア:

[(1, 21986643), (3, 7328881), (7, 3140949), (21, 1046983), (23, 955941), (49, 448707), (69, 318647), (147, 149569), (161, 136563), (343, 64101), (483, 45521), (929, 23667), (1029, 21367), (1127, 19509), (2787, 7889), (3381, 6503)]