21748155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10139}}^1$

素因数の和:10171

約数の個数: 32

約数和(自身を含む): 40884480

約数和(自身を除く): 19136325

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 10139, 30417, 50695, 111529, 131807, 152085, 334587, 395421, 557645, 659035, 1449877, 1672935, 1977105, 4349631, 7249385, 21748155]

約数ペア:

[(1, 21748155), (3, 7249385), (5, 4349631), (11, 1977105), (13, 1672935), (15, 1449877), (33, 659035), (39, 557645), (55, 395421), (65, 334587), (143, 152085), (165, 131807), (195, 111529), (429, 50695), (715, 30417), (2145, 10139)]