18919017

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1601}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 29739528

約数和(自身を除く): 10820511

約数列:

[1, 3, 9, 13, 39, 101, 117, 303, 909, 1313, 1601, 3939, 4803, 11817, 14409, 20813, 62439, 161701, 187317, 485103, 1455309, 2102113, 6306339, 18919017]

約数ペア:

[(1, 18919017), (3, 6306339), (9, 2102113), (13, 1455309), (39, 485103), (101, 187317), (117, 161701), (303, 62439), (909, 20813), (1313, 14409), (1601, 11817), (3939, 4803)]