20503593

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2917}}^1$

素因数の和:3005

約数の個数: 24

約数和(自身を含む): 32774976

約数和(自身を除く): 12271383

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2917, 7029, 8751, 26253, 32087, 96261, 207107, 288783, 621321, 1863963, 2278177, 6834531, 20503593]

約数ペア:

[(1, 20503593), (3, 6834531), (9, 2278177), (11, 1863963), (33, 621321), (71, 288783), (99, 207107), (213, 96261), (639, 32087), (781, 26253), (2343, 8751), (2917, 7029)]