21384850

素因数分解:

$2^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{2027}}^1$

素因数の和:2250

約数の個数: 24

約数和(自身を含む): 39984048

約数和(自身を除く): 18599198

約数列:

[1, 2, 5, 10, 25, 50, 211, 422, 1055, 2027, 2110, 4054, 5275, 10135, 10550, 20270, 50675, 101350, 427697, 855394, 2138485, 4276970, 10692425, 21384850]

約数ペア:

[(1, 21384850), (2, 10692425), (5, 4276970), (10, 2138485), (25, 855394), (50, 427697), (211, 101350), (422, 50675), (1055, 20270), (2027, 10550), (2110, 10135), (4054, 5275)]