31897185

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2909}}^1$

素因数の和:2977

約数の個数: 32

約数和(自身を含む): 55313280

約数和(自身を除く): 23416095

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 2193, 2909, 3655, 8727, 10965, 14545, 43635, 49453, 125087, 148359, 247265, 375261, 625435, 741795, 1876305, 2126479, 6379437, 10632395, 31897185]

約数ペア:

[(1, 31897185), (3, 10632395), (5, 6379437), (15, 2126479), (17, 1876305), (43, 741795), (51, 625435), (85, 375261), (129, 247265), (215, 148359), (255, 125087), (645, 49453), (731, 43635), (2193, 14545), (2909, 10965), (3655, 8727)]