21807610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198251}}^1$

素因数の和:198269

約数の個数: 16

約数和(自身を含む): 42822432

約数和(自身を除く): 21014822

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198251, 396502, 991255, 1982510, 2180761, 4361522, 10903805, 21807610]

約数ペア:

[(1, 21807610), (2, 10903805), (5, 4361522), (10, 2180761), (11, 1982510), (22, 991255), (55, 396502), (110, 198251)]