21580031

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1109}}^1$

素因数の和:1210

約数の個数: 16

約数和(自身を含む): 24775200

約数和(自身を除く): 3195169

約数列:

[1, 11, 29, 61, 319, 671, 1109, 1769, 12199, 19459, 32161, 67649, 353771, 744139, 1961821, 21580031]

約数ペア:

[(1, 21580031), (11, 1961821), (29, 744139), (61, 353771), (319, 67649), (671, 32161), (1109, 19459), (1769, 12199)]