21027496

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4219}}^1$

素因数の和:4321

約数の個数: 32

約数和(自身を含む): 45576000

約数和(自身を除く): 24548504

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4219, 4984, 8438, 16876, 29533, 33752, 59066, 118132, 236264, 375491, 750982, 1501964, 2628437, 3003928, 5256874, 10513748, 21027496]

約数ペア:

[(1, 21027496), (2, 10513748), (4, 5256874), (7, 3003928), (8, 2628437), (14, 1501964), (28, 750982), (56, 375491), (89, 236264), (178, 118132), (356, 59066), (623, 33752), (712, 29533), (1246, 16876), (2492, 8438), (4219, 4984)]