18089877

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 9005163

約数列:

[1, 3, 13, 39, 47, 71, 139, 141, 213, 417, 611, 923, 1807, 1833, 2769, 3337, 5421, 6533, 9869, 10011, 19599, 29607, 43381, 84929, 128297, 130143, 254787, 384891, 463843, 1391529, 6029959, 18089877]

約数ペア:

[(1, 18089877), (3, 6029959), (13, 1391529), (39, 463843), (47, 384891), (71, 254787), (139, 130143), (141, 128297), (213, 84929), (417, 43381), (611, 29607), (923, 19599), (1807, 10011), (1833, 9869), (2769, 6533), (3337, 5421)]