66538129

素因数分解:

$7^2\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 79769448

約数和(自身を除く): 13231319

約数列:

[1, 7, 49, 61, 113, 197, 427, 791, 1379, 2989, 5537, 6893, 9653, 12017, 22261, 48251, 84119, 155827, 337757, 588833, 1090789, 1357921, 9505447, 66538129]

約数ペア:

[(1, 66538129), (7, 9505447), (49, 1357921), (61, 1090789), (113, 588833), (197, 337757), (427, 155827), (791, 84119), (1379, 48251), (2989, 22261), (5537, 12017), (6893, 9653)]