21370013

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 26544000

約数和(自身を除く): 5173987

約数列:

[1, 7, 23, 29, 161, 199, 203, 529, 667, 1393, 3703, 4577, 4669, 5771, 15341, 32039, 40397, 105271, 107387, 132733, 736897, 929131, 3052859, 21370013]

約数ペア:

[(1, 21370013), (7, 3052859), (23, 929131), (29, 736897), (161, 132733), (199, 107387), (203, 105271), (529, 40397), (667, 32039), (1393, 15341), (3703, 5771), (4577, 4669)]