1821555

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 3294720

約数和(自身を除く): 1473165

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 131, 135, 309, 393, 515, 655, 927, 1179, 1545, 1965, 2781, 3537, 4635, 5895, 13493, 13905, 17685, 40479, 67465, 121437, 202395, 364311, 607185, 1821555]

約数ペア:

[(1, 1821555), (3, 607185), (5, 364311), (9, 202395), (15, 121437), (27, 67465), (45, 40479), (103, 17685), (131, 13905), (135, 13493), (309, 5895), (393, 4635), (515, 3537), (655, 2781), (927, 1965), (1179, 1545)]