31146921

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 51123072

約数和(自身を除く): 19976151

約数列:

[1, 3, 9, 13, 39, 41, 43, 117, 123, 129, 151, 369, 387, 453, 533, 559, 1359, 1599, 1677, 1763, 1963, 4797, 5031, 5289, 5889, 6191, 6493, 15867, 17667, 18573, 19479, 22919, 55719, 58437, 68757, 80483, 84409, 206271, 241449, 253227, 266213, 724347, 759681, 798639, 2395917, 3460769, 10382307, 31146921]

約数ペア:

[(1, 31146921), (3, 10382307), (9, 3460769), (13, 2395917), (39, 798639), (41, 759681), (43, 724347), (117, 266213), (123, 253227), (129, 241449), (151, 206271), (369, 84409), (387, 80483), (453, 68757), (533, 58437), (559, 55719), (1359, 22919), (1599, 19479), (1677, 18573), (1763, 17667), (1963, 15867), (4797, 6493), (5031, 6191), (5289, 5889)]