25171223

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 33426432

約数和(自身を除く): 8255209

約数列:

[1, 7, 11, 23, 61, 77, 161, 233, 253, 427, 671, 1403, 1631, 1771, 2563, 4697, 5359, 9821, 14213, 15433, 17941, 37513, 58949, 99491, 108031, 156343, 326899, 412643, 1094401, 2288293, 3595889, 25171223]

約数ペア:

[(1, 25171223), (7, 3595889), (11, 2288293), (23, 1094401), (61, 412643), (77, 326899), (161, 156343), (233, 108031), (253, 99491), (427, 58949), (671, 37513), (1403, 17941), (1631, 15433), (1771, 14213), (2563, 9821), (4697, 5359)]