21889340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99497}}^1$

素因数の和:99517

約数の個数: 24

約数和(自身を含む): 50146992

約数和(自身を除く): 28257652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 99497, 198994, 397988, 497485, 994970, 1094467, 1989940, 2188934, 4377868, 5472335, 10944670, 21889340]

約数ペア:

[(1, 21889340), (2, 10944670), (4, 5472335), (5, 4377868), (10, 2188934), (11, 1989940), (20, 1094467), (22, 994970), (44, 497485), (55, 397988), (110, 198994), (220, 99497)]