20811616

素因数分解:

$2^5\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1753}}^1$

素因数の和:1823

約数の個数: 48

約数和(自身を含む): 47736864

約数和(自身を除く): 26925248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 106, 112, 212, 224, 371, 424, 742, 848, 1484, 1696, 1753, 2968, 3506, 5936, 7012, 11872, 12271, 14024, 24542, 28048, 49084, 56096, 92909, 98168, 185818, 196336, 371636, 392672, 650363, 743272, 1300726, 1486544, 2601452, 2973088, 5202904, 10405808, 20811616]

約数ペア:

[(1, 20811616), (2, 10405808), (4, 5202904), (7, 2973088), (8, 2601452), (14, 1486544), (16, 1300726), (28, 743272), (32, 650363), (53, 392672), (56, 371636), (106, 196336), (112, 185818), (212, 98168), (224, 92909), (371, 56096), (424, 49084), (742, 28048), (848, 24542), (1484, 14024), (1696, 12271), (1753, 11872), (2968, 7012), (3506, 5936)]