20211712

素因数分解:

$2^{11}\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 41277600

約数和(自身を除く): 21065888

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 139, 142, 256, 278, 284, 512, 556, 568, 1024, 1112, 1136, 2048, 2224, 2272, 4448, 4544, 8896, 9088, 9869, 17792, 18176, 19738, 35584, 36352, 39476, 71168, 72704, 78952, 142336, 145408, 157904, 284672, 315808, 631616, 1263232, 2526464, 5052928, 10105856, 20211712]

約数ペア:

[(1, 20211712), (2, 10105856), (4, 5052928), (8, 2526464), (16, 1263232), (32, 631616), (64, 315808), (71, 284672), (128, 157904), (139, 145408), (142, 142336), (256, 78952), (278, 72704), (284, 71168), (512, 39476), (556, 36352), (568, 35584), (1024, 19738), (1112, 18176), (1136, 17792), (2048, 9869), (2224, 9088), (2272, 8896), (4448, 4544)]