20124819

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 35992320

約数和(自身を除く): 15867501

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 823, 1287, 1881, 2223, 2469, 2717, 7407, 8151, 9053, 10699, 15637, 24453, 27159, 32097, 46911, 81477, 96291, 117689, 140733, 172007, 203281, 353067, 516021, 609843, 1059201, 1548063, 1829529, 2236091, 6708273, 20124819]

約数ペア:

[(1, 20124819), (3, 6708273), (9, 2236091), (11, 1829529), (13, 1548063), (19, 1059201), (33, 609843), (39, 516021), (57, 353067), (99, 203281), (117, 172007), (143, 140733), (171, 117689), (209, 96291), (247, 81477), (429, 46911), (627, 32097), (741, 27159), (823, 24453), (1287, 15637), (1881, 10699), (2223, 9053), (2469, 8151), (2717, 7407)]