21140703

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 33292800

約数和(自身を除く): 12152097

約数列:

[1, 3, 9, 23, 27, 59, 69, 177, 207, 531, 577, 621, 1357, 1593, 1731, 4071, 5193, 12213, 13271, 15579, 34043, 36639, 39813, 102129, 119439, 306387, 358317, 782989, 919161, 2348967, 7046901, 21140703]

約数ペア:

[(1, 21140703), (3, 7046901), (9, 2348967), (23, 919161), (27, 782989), (59, 358317), (69, 306387), (177, 119439), (207, 102129), (531, 39813), (577, 36639), (621, 34043), (1357, 15579), (1593, 13271), (1731, 12213), (4071, 5193)]