21013513

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{241}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 2404343

約数列:

[1, 17, 23, 223, 241, 391, 3791, 4097, 5129, 5543, 53743, 87193, 94231, 913631, 1236089, 21013513]

約数ペア:

[(1, 21013513), (17, 1236089), (23, 913631), (223, 94231), (241, 87193), (391, 53743), (3791, 5543), (4097, 5129)]