21326455

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{7741}}^1$

素因数の和:7794

約数の個数: 16

約数和(自身を含む): 27871200

約数和(自身を除く): 6544745

約数列:

[1, 5, 19, 29, 95, 145, 551, 2755, 7741, 38705, 147079, 224489, 735395, 1122445, 4265291, 21326455]

約数ペア:

[(1, 21326455), (5, 4265291), (19, 1122445), (29, 735395), (95, 224489), (145, 147079), (551, 38705), (2755, 7741)]