21321776

素因数分解:

$2^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1499}}^1$

素因数の和:1641

約数の個数: 40

約数和(自身を含む): 47616000

約数和(自身を除く): 26294224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 127, 254, 508, 889, 1016, 1499, 1778, 2032, 2998, 3556, 5996, 7112, 10493, 11992, 14224, 20986, 23984, 41972, 83944, 167888, 190373, 380746, 761492, 1332611, 1522984, 2665222, 3045968, 5330444, 10660888, 21321776]

約数ペア:

[(1, 21321776), (2, 10660888), (4, 5330444), (7, 3045968), (8, 2665222), (14, 1522984), (16, 1332611), (28, 761492), (56, 380746), (112, 190373), (127, 167888), (254, 83944), (508, 41972), (889, 23984), (1016, 20986), (1499, 14224), (1778, 11992), (2032, 10493), (2998, 7112), (3556, 5996)]