31404131

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 7303069

約数列:

[1, 11, 19, 23, 47, 139, 209, 253, 437, 517, 893, 1081, 1529, 2641, 3197, 4807, 6533, 9823, 11891, 20539, 29051, 35167, 60743, 71863, 124127, 150259, 225929, 668173, 1365397, 1652849, 2854921, 31404131]

約数ペア:

[(1, 31404131), (11, 2854921), (19, 1652849), (23, 1365397), (47, 668173), (139, 225929), (209, 150259), (253, 124127), (437, 71863), (517, 60743), (893, 35167), (1081, 29051), (1529, 20539), (2641, 11891), (3197, 9823), (4807, 6533)]