21671199

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 13683681

約数列:

[1, 3, 9, 11, 27, 33, 99, 131, 297, 393, 557, 1179, 1441, 1671, 3537, 4323, 5013, 6127, 12969, 15039, 18381, 38907, 55143, 72967, 165429, 218901, 656703, 802637, 1970109, 2407911, 7223733, 21671199]

約数ペア:

[(1, 21671199), (3, 7223733), (9, 2407911), (11, 1970109), (27, 802637), (33, 656703), (99, 218901), (131, 165429), (297, 72967), (393, 55143), (557, 38907), (1179, 18381), (1441, 15039), (1671, 12969), (3537, 6127), (4323, 5013)]