21392919

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3779}}^1$

素因数の和:3839

約数の個数: 24

約数和(自身を含む): 33611760

約数和(自身を除く): 12218841

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3779, 5661, 11337, 34011, 64243, 139823, 192729, 419469, 578187, 1258407, 2376991, 7130973, 21392919]

約数ペア:

[(1, 21392919), (3, 7130973), (9, 2376991), (17, 1258407), (37, 578187), (51, 419469), (111, 192729), (153, 139823), (333, 64243), (629, 34011), (1887, 11337), (3779, 5661)]