19858295

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{761}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 25347168

約数和(自身を除く): 5488873

約数列:

[1, 5, 17, 85, 307, 761, 1535, 3805, 5219, 12937, 26095, 64685, 233627, 1168135, 3971659, 19858295]

約数ペア:

[(1, 19858295), (5, 3971659), (17, 1168135), (85, 233627), (307, 64685), (761, 26095), (1535, 12937), (3805, 5219)]