21051248

素因数分解:

$2^4\times {\mathrm{457}}^1\times {\mathrm{2879}}^1$

素因数の和:3344

約数の個数: 20

約数和(自身を含む): 40890240

約数和(自身を除く): 19838992

約数列:

[1, 2, 4, 8, 16, 457, 914, 1828, 2879, 3656, 5758, 7312, 11516, 23032, 46064, 1315703, 2631406, 5262812, 10525624, 21051248]

約数ペア:

[(1, 21051248), (2, 10525624), (4, 5262812), (8, 2631406), (16, 1315703), (457, 46064), (914, 23032), (1828, 11516), (2879, 7312), (3656, 5758)]