29887947

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5197}}^1$

素因数の和:5280

約数の個数: 20

約数和(自身を含む): 45284976

約数和(自身を除く): 15397029

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5197, 5751, 15591, 46773, 140319, 368987, 420957, 1106961, 3320883, 9962649, 29887947]

約数ペア:

[(1, 29887947), (3, 9962649), (9, 3320883), (27, 1106961), (71, 420957), (81, 368987), (213, 140319), (639, 46773), (1917, 15591), (5197, 5751)]