21704735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2549}}^1$

素因数の和:2698

約数の個数: 16

約数和(自身を含む): 28274400

約数和(自身を除く): 6569665

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2549, 8515, 12745, 33137, 165685, 333919, 1669595, 4340947, 21704735]

約数ペア:

[(1, 21704735), (5, 4340947), (13, 1669595), (65, 333919), (131, 165685), (655, 33137), (1703, 12745), (2549, 8515)]