21767824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1$

素因数の和:707

約数の個数: 40

約数和(自身を含む): 45717560

約数和(自身を除く): 23949736

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 229, 457, 458, 914, 916, 1828, 1832, 2977, 3656, 3664, 5941, 5954, 7312, 11882, 11908, 23764, 23816, 47528, 47632, 95056, 104653, 209306, 418612, 837224, 1360489, 1674448, 2720978, 5441956, 10883912, 21767824]

約数ペア:

[(1, 21767824), (2, 10883912), (4, 5441956), (8, 2720978), (13, 1674448), (16, 1360489), (26, 837224), (52, 418612), (104, 209306), (208, 104653), (229, 95056), (457, 47632), (458, 47528), (914, 23816), (916, 23764), (1828, 11908), (1832, 11882), (2977, 7312), (3656, 5954), (3664, 5941)]