21805446

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{279557}}^1$

素因数の和:279575

約数の個数: 16

約数和(自身を含む): 46965744

約数和(自身を除く): 25160298

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 279557, 559114, 838671, 1677342, 3634241, 7268482, 10902723, 21805446]

約数ペア:

[(1, 21805446), (2, 10902723), (3, 7268482), (6, 3634241), (13, 1677342), (26, 838671), (39, 559114), (78, 279557)]