19709872

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13537}}^1$

素因数の和:13565

約数の個数: 40

約数和(自身を含む): 47003936

約数和(自身を除く): 27294064

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13537, 27074, 54148, 94759, 108296, 175981, 189518, 216592, 351962, 379036, 703924, 758072, 1231867, 1407848, 1516144, 2463734, 2815696, 4927468, 9854936, 19709872]

約数ペア:

[(1, 19709872), (2, 9854936), (4, 4927468), (7, 2815696), (8, 2463734), (13, 1516144), (14, 1407848), (16, 1231867), (26, 758072), (28, 703924), (52, 379036), (56, 351962), (91, 216592), (104, 189518), (112, 175981), (182, 108296), (208, 94759), (364, 54148), (728, 27074), (1456, 13537)]