21755680

素因数分解:

$2^5\times 5^1\times {\mathrm{227}}^1\times {\mathrm{599}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 51710400

約数和(自身を除く): 29954720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 227, 454, 599, 908, 1135, 1198, 1816, 2270, 2396, 2995, 3632, 4540, 4792, 5990, 7264, 9080, 9584, 11980, 18160, 19168, 23960, 36320, 47920, 95840, 135973, 271946, 543892, 679865, 1087784, 1359730, 2175568, 2719460, 4351136, 5438920, 10877840, 21755680]

約数ペア:

[(1, 21755680), (2, 10877840), (4, 5438920), (5, 4351136), (8, 2719460), (10, 2175568), (16, 1359730), (20, 1087784), (32, 679865), (40, 543892), (80, 271946), (160, 135973), (227, 95840), (454, 47920), (599, 36320), (908, 23960), (1135, 19168), (1198, 18160), (1816, 11980), (2270, 9584), (2396, 9080), (2995, 7264), (3632, 5990), (4540, 4792)]