21116535

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127979}}^1$

素因数の和:127998

約数の個数: 16

約数和(自身を含む): 36858240

約数和(自身を除く): 15741705

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127979, 383937, 639895, 1407769, 1919685, 4223307, 7038845, 21116535]

約数ペア:

[(1, 21116535), (3, 7038845), (5, 4223307), (11, 1919685), (15, 1407769), (33, 639895), (55, 383937), (165, 127979)]