21216512

素因数分解:

$2^8\times {\mathrm{179}}^1\times {\mathrm{463}}^1$

素因数の和:658

約数の個数: 36

約数和(自身を含む): 42678720

約数和(自身を除く): 21462208

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 179, 256, 358, 463, 716, 926, 1432, 1852, 2864, 3704, 5728, 7408, 11456, 14816, 22912, 29632, 45824, 59264, 82877, 118528, 165754, 331508, 663016, 1326032, 2652064, 5304128, 10608256, 21216512]

約数ペア:

[(1, 21216512), (2, 10608256), (4, 5304128), (8, 2652064), (16, 1326032), (32, 663016), (64, 331508), (128, 165754), (179, 118528), (256, 82877), (358, 59264), (463, 45824), (716, 29632), (926, 22912), (1432, 14816), (1852, 11456), (2864, 7408), (3704, 5728)]