21494415

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1423}}^1$

素因数の和:1503

約数の個数: 32

約数和(自身を含む): 36910080

約数和(自身を除く): 15415665

約数列:

[1, 3, 5, 15, 19, 53, 57, 95, 159, 265, 285, 795, 1007, 1423, 3021, 4269, 5035, 7115, 15105, 21345, 27037, 75419, 81111, 135185, 226257, 377095, 405555, 1131285, 1432961, 4298883, 7164805, 21494415]

約数ペア:

[(1, 21494415), (3, 7164805), (5, 4298883), (15, 1432961), (19, 1131285), (53, 405555), (57, 377095), (95, 226257), (159, 135185), (265, 81111), (285, 75419), (795, 27037), (1007, 21345), (1423, 15105), (3021, 7115), (4269, 5035)]