21409376

素因数分解:

$2^5\times {\mathrm{809}}^1\times {\mathrm{827}}^1$

素因数の和:1646

約数の個数: 24

約数和(自身を含む): 42252840

約数和(自身を除く): 20843464

約数列:

[1, 2, 4, 8, 16, 32, 809, 827, 1618, 1654, 3236, 3308, 6472, 6616, 12944, 13232, 25888, 26464, 669043, 1338086, 2676172, 5352344, 10704688, 21409376]

約数ペア:

[(1, 21409376), (2, 10704688), (4, 5352344), (8, 2676172), (16, 1338086), (32, 669043), (809, 26464), (827, 25888), (1618, 13232), (1654, 12944), (3236, 6616), (3308, 6472)]