21737781

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3643}}^1$

素因数の和:3682

約数の個数: 32

約数和(自身を含む): 36731520

約数和(自身を除く): 14993739

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 3643, 5967, 10929, 32787, 47359, 61931, 98361, 142077, 185793, 426231, 557379, 805103, 1278693, 1672137, 2415309, 7245927, 21737781]

約数ペア:

[(1, 21737781), (3, 7245927), (9, 2415309), (13, 1672137), (17, 1278693), (27, 805103), (39, 557379), (51, 426231), (117, 185793), (153, 142077), (221, 98361), (351, 61931), (459, 47359), (663, 32787), (1989, 10929), (3643, 5967)]