18883669

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 23126040

約数和(自身を除く): 4242371

約数列:

[1, 7, 29, 49, 97, 137, 203, 679, 959, 1421, 2813, 3973, 4753, 6713, 13289, 19691, 27811, 93023, 137837, 194677, 385381, 651161, 2697667, 18883669]

約数ペア:

[(1, 18883669), (7, 2697667), (29, 651161), (49, 385381), (97, 194677), (137, 137837), (203, 93023), (679, 27811), (959, 19691), (1421, 13289), (2813, 6713), (3973, 4753)]