21465856

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1181}}^1$

素因数の和:1268

約数の個数: 36

約数和(自身を含む): 43488144

約数和(自身を除く): 22022288

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1136, 1181, 2272, 2362, 4544, 4724, 9088, 9448, 18176, 18896, 37792, 75584, 83851, 151168, 167702, 302336, 335404, 670808, 1341616, 2683232, 5366464, 10732928, 21465856]

約数ペア:

[(1, 21465856), (2, 10732928), (4, 5366464), (8, 2683232), (16, 1341616), (32, 670808), (64, 335404), (71, 302336), (128, 167702), (142, 151168), (256, 83851), (284, 75584), (568, 37792), (1136, 18896), (1181, 18176), (2272, 9448), (2362, 9088), (4544, 4724)]