21327605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19301}}^1$

素因数の和:19336

約数の個数: 16

約数和(自身を含む): 29184624

約数和(自身を除く): 7857019

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19301, 96505, 250913, 328117, 1254565, 1640585, 4265521, 21327605]

約数ペア:

[(1, 21327605), (5, 4265521), (13, 1640585), (17, 1254565), (65, 328117), (85, 250913), (221, 96505), (1105, 19301)]