20559903

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{593}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 13502433

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 593, 889, 1651, 1779, 2667, 4151, 4953, 7709, 11557, 12453, 23127, 34671, 53963, 75311, 161889, 225933, 527177, 979043, 1581531, 2937129, 6853301, 20559903]

約数ペア:

[(1, 20559903), (3, 6853301), (7, 2937129), (13, 1581531), (21, 979043), (39, 527177), (91, 225933), (127, 161889), (273, 75311), (381, 53963), (593, 34671), (889, 23127), (1651, 12453), (1779, 11557), (2667, 7709), (4151, 4953)]