28821903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{5563}}^1$

素因数の和:5734

約数の個数: 16

約数和(自身を含む): 42197376

約数和(自身を除く): 13375473

約数列:

[1, 3, 11, 33, 157, 471, 1727, 5181, 5563, 16689, 61193, 183579, 873391, 2620173, 9607301, 28821903]

約数ペア:

[(1, 28821903), (3, 9607301), (11, 2620173), (33, 873391), (157, 183579), (471, 61193), (1727, 16689), (5181, 5563)]