21820683

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 10527477

約数列:

[1, 3, 19, 31, 53, 57, 93, 159, 233, 589, 699, 1007, 1643, 1767, 3021, 4427, 4929, 7223, 12349, 13281, 21669, 31217, 37047, 93651, 137237, 234631, 382819, 411711, 703893, 1148457, 7273561, 21820683]

約数ペア:

[(1, 21820683), (3, 7273561), (19, 1148457), (31, 703893), (53, 411711), (57, 382819), (93, 234631), (159, 137237), (233, 93651), (589, 37047), (699, 31217), (1007, 21669), (1643, 13281), (1767, 12349), (3021, 7223), (4427, 4929)]