20443203

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5581}}^1$

素因数の和:5635

約数の個数: 24

約数和(自身を含む): 33090096

約数和(自身を除く): 12646893

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 5581, 16743, 50229, 61391, 184173, 206497, 552519, 619491, 1858473, 2271467, 6814401, 20443203]

約数ペア:

[(1, 20443203), (3, 6814401), (9, 2271467), (11, 1858473), (33, 619491), (37, 552519), (99, 206497), (111, 184173), (333, 61391), (407, 50229), (1221, 16743), (3663, 5581)]