17972619

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{6247}}^1$

素因数の和:6394

約数の個数: 16

約数和(自身を含む): 27591168

約数和(自身を除く): 9618549

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 6247, 18741, 43729, 131187, 855839, 2567517, 5990873, 17972619]

約数ペア:

[(1, 17972619), (3, 5990873), (7, 2567517), (21, 855839), (137, 131187), (411, 43729), (959, 18741), (2877, 6247)]