19982365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1777}}^1$

素因数の和:1968

約数の個数: 16

約数和(自身を含む): 25987248

約数和(自身を除く): 6004883

約数列:

[1, 5, 13, 65, 173, 865, 1777, 2249, 8885, 11245, 23101, 115505, 307421, 1537105, 3996473, 19982365]

約数ペア:

[(1, 19982365), (5, 3996473), (13, 1537105), (65, 307421), (173, 115505), (865, 23101), (1777, 11245), (2249, 8885)]