2047955

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{643}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 3083472

約数和(自身を除く): 1035517

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 643, 3185, 3215, 4501, 8359, 22505, 31507, 41795, 58513, 157535, 292565, 409591, 2047955]

約数ペア:

[(1, 2047955), (5, 409591), (7, 292565), (13, 157535), (35, 58513), (49, 41795), (65, 31507), (91, 22505), (245, 8359), (455, 4501), (637, 3215), (643, 3185)]