20211968

素因数分解:

$2^8\times 7^1\times {\mathrm{11279}}^1$

素因数の和:11302

約数の個数: 36

約数和(自身を含む): 46112640

約数和(自身を除く): 25900672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11279, 22558, 45116, 78953, 90232, 157906, 180464, 315812, 360928, 631624, 721856, 1263248, 1443712, 2526496, 2887424, 5052992, 10105984, 20211968]

約数ペア:

[(1, 20211968), (2, 10105984), (4, 5052992), (7, 2887424), (8, 2526496), (14, 1443712), (16, 1263248), (28, 721856), (32, 631624), (56, 360928), (64, 315812), (112, 180464), (128, 157906), (224, 90232), (256, 78953), (448, 45116), (896, 22558), (1792, 11279)]