21048256

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{103}}^2$

素因数の和:249

約数の個数: 42

約数和(自身を含む): 43537632

約数和(自身を除く): 22489376

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 103, 124, 206, 248, 412, 496, 824, 992, 1648, 1984, 3193, 3296, 6386, 6592, 10609, 12772, 21218, 25544, 42436, 51088, 84872, 102176, 169744, 204352, 328879, 339488, 657758, 678976, 1315516, 2631032, 5262064, 10524128, 21048256]

約数ペア:

[(1, 21048256), (2, 10524128), (4, 5262064), (8, 2631032), (16, 1315516), (31, 678976), (32, 657758), (62, 339488), (64, 328879), (103, 204352), (124, 169744), (206, 102176), (248, 84872), (412, 51088), (496, 42436), (824, 25544), (992, 21218), (1648, 12772), (1984, 10609), (3193, 6592), (3296, 6386)]