31420881

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{601}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 46987304

約数和(自身を除く): 15566423

約数列:

[1, 3, 9, 37, 111, 157, 333, 471, 601, 1413, 1803, 5409, 5809, 17427, 22237, 52281, 66711, 94357, 200133, 283071, 849213, 3491209, 10473627, 31420881]

約数ペア:

[(1, 31420881), (3, 10473627), (9, 3491209), (37, 849213), (111, 283071), (157, 200133), (333, 94357), (471, 66711), (601, 52281), (1413, 22237), (1803, 17427), (5409, 5809)]