21261545

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{631}}^1$

素因数の和:952

約数の個数: 16

約数和(自身を含む): 26756352

約数和(自身を除く): 5494807

約数列:

[1, 5, 23, 115, 293, 631, 1465, 3155, 6739, 14513, 33695, 72565, 184883, 924415, 4252309, 21261545]

約数ペア:

[(1, 21261545), (5, 4252309), (23, 924415), (115, 184883), (293, 72565), (631, 33695), (1465, 14513), (3155, 6739)]