27890863

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 12328337

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 121, 143, 149, 187, 221, 847, 1001, 1043, 1309, 1547, 1573, 1639, 1937, 2057, 2431, 2533, 11011, 11473, 13559, 14399, 17017, 17731, 18029, 21307, 26741, 27863, 32929, 126203, 149149, 187187, 195041, 230503, 234377, 306493, 362219, 1640639, 2145451, 2535533, 3984409, 27890863]

約数ペア:

[(1, 27890863), (7, 3984409), (11, 2535533), (13, 2145451), (17, 1640639), (77, 362219), (91, 306493), (119, 234377), (121, 230503), (143, 195041), (149, 187187), (187, 149149), (221, 126203), (847, 32929), (1001, 27863), (1043, 26741), (1309, 21307), (1547, 18029), (1573, 17731), (1639, 17017), (1937, 14399), (2057, 13559), (2431, 11473), (2533, 11011)]