31980927

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 49800960

約数和(自身を除く): 17820033

約数列:

[1, 3, 11, 17, 33, 51, 109, 187, 327, 523, 561, 1199, 1569, 1853, 3597, 5559, 5753, 8891, 17259, 20383, 26673, 57007, 61149, 97801, 171021, 293403, 627077, 969119, 1881231, 2907357, 10660309, 31980927]

約数ペア:

[(1, 31980927), (3, 10660309), (11, 2907357), (17, 1881231), (33, 969119), (51, 627077), (109, 293403), (187, 171021), (327, 97801), (523, 61149), (561, 57007), (1199, 26673), (1569, 20383), (1853, 17259), (3597, 8891), (5559, 5753)]