21707984

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28867}}^1$

素因数の和:28922

約数の個数: 20

約数和(自身を含む): 42955584

約数和(自身を除く): 21247600

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28867, 57734, 115468, 230936, 461872, 1356749, 2713498, 5426996, 10853992, 21707984]

約数ペア:

[(1, 21707984), (2, 10853992), (4, 5426996), (8, 2713498), (16, 1356749), (47, 461872), (94, 230936), (188, 115468), (376, 57734), (752, 28867)]