19779201

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1523}}^1$

素因数の和:1582

約数の個数: 32

約数和(自身を含む): 32430720

約数和(自身を除く): 12651519

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 1523, 4329, 4569, 12987, 13707, 19799, 41121, 56351, 59397, 169053, 178191, 507159, 534573, 732563, 1521477, 2197689, 6593067, 19779201]

約数ペア:

[(1, 19779201), (3, 6593067), (9, 2197689), (13, 1521477), (27, 732563), (37, 534573), (39, 507159), (111, 178191), (117, 169053), (333, 59397), (351, 56351), (481, 41121), (999, 19799), (1443, 13707), (1523, 12987), (4329, 4569)]