18572415

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 31720896

約数和(自身を除く): 13148481

約数列:

[1, 3, 5, 15, 17, 51, 85, 173, 255, 421, 519, 865, 1263, 2105, 2595, 2941, 6315, 7157, 8823, 14705, 21471, 35785, 44115, 72833, 107355, 218499, 364165, 1092495, 1238161, 3714483, 6190805, 18572415]

約数ペア:

[(1, 18572415), (3, 6190805), (5, 3714483), (15, 1238161), (17, 1092495), (51, 364165), (85, 218499), (173, 107355), (255, 72833), (421, 44115), (519, 35785), (865, 21471), (1263, 14705), (2105, 8823), (2595, 7157), (2941, 6315)]