218857552

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{61339}}^1$

素因数の和:61570

約数の個数: 20

約数和(自身を含む): 425944960

約数和(自身を除く): 207087408

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 61339, 122678, 245356, 490712, 981424, 13678597, 27357194, 54714388, 109428776, 218857552]

約数ペア:

[(1, 218857552), (2, 109428776), (4, 54714388), (8, 27357194), (16, 13678597), (223, 981424), (446, 490712), (892, 245356), (1784, 122678), (3568, 61339)]