21361940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{46439}}^1$

素因数の和:46471

約数の個数: 24

約数和(自身を含む): 46811520

約数和(自身を除く): 25449580

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 46439, 92878, 185756, 232195, 464390, 928780, 1068097, 2136194, 4272388, 5340485, 10680970, 21361940]

約数ペア:

[(1, 21361940), (2, 10680970), (4, 5340485), (5, 4272388), (10, 2136194), (20, 1068097), (23, 928780), (46, 464390), (92, 232195), (115, 185756), (230, 92878), (460, 46439)]