20858647537

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1\times {\mathrm{4789}}^1$

素因数の和:6913

約数の個数: 32

約数和(自身を含む): 26806832640

約数和(自身を除く): 5948185103

約数列:

[1, 7, 13, 23, 91, 161, 299, 2081, 2093, 4789, 14567, 27053, 33523, 47863, 62257, 110147, 189371, 335041, 435799, 622219, 771029, 1431911, 4355533, 9965909, 10023377, 69761363, 129556817, 229215907, 906897719, 1604511349, 2979806791, 20858647537]

約数ペア:

[(1, 20858647537), (7, 2979806791), (13, 1604511349), (23, 906897719), (91, 229215907), (161, 129556817), (299, 69761363), (2081, 10023377), (2093, 9965909), (4789, 4355533), (14567, 1431911), (27053, 771029), (33523, 622219), (47863, 435799), (62257, 335041), (110147, 189371)]