20851712

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2909}}^1$

素因数の和:2936

約数の個数: 44

約数和(自身を含む): 47654160

約数和(自身を除く): 26802448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2909, 3584, 5818, 7168, 11636, 20363, 23272, 40726, 46544, 81452, 93088, 162904, 186176, 325808, 372352, 651616, 744704, 1303232, 1489408, 2606464, 2978816, 5212928, 10425856, 20851712]

約数ペア:

[(1, 20851712), (2, 10425856), (4, 5212928), (7, 2978816), (8, 2606464), (14, 1489408), (16, 1303232), (28, 744704), (32, 651616), (56, 372352), (64, 325808), (112, 186176), (128, 162904), (224, 93088), (256, 81452), (448, 46544), (512, 40726), (896, 23272), (1024, 20363), (1792, 11636), (2909, 7168), (3584, 5818)]