18019309

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 23162976

約数和(自身を除く): 5143667

約数列:

[1, 7, 11, 49, 77, 101, 331, 539, 707, 1111, 2317, 3641, 4949, 7777, 16219, 25487, 33431, 54439, 178409, 234017, 367741, 1638119, 2574187, 18019309]

約数ペア:

[(1, 18019309), (7, 2574187), (11, 1638119), (49, 367741), (77, 234017), (101, 178409), (331, 54439), (539, 33431), (707, 25487), (1111, 16219), (2317, 7777), (3641, 4949)]