20998796

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57689}}^1$

素因数の和:57713

約数の個数: 24

約数和(自身を含む): 45228960

約数和(自身を除く): 24230164

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57689, 115378, 230756, 403823, 749957, 807646, 1499914, 1615292, 2999828, 5249699, 10499398, 20998796]

約数ペア:

[(1, 20998796), (2, 10499398), (4, 5249699), (7, 2999828), (13, 1615292), (14, 1499914), (26, 807646), (28, 749957), (52, 403823), (91, 230756), (182, 115378), (364, 57689)]