31389303

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 47215872

約数和(自身を除く): 15826569

約数列:

[1, 3, 11, 33, 53, 131, 137, 159, 393, 411, 583, 1441, 1507, 1749, 4323, 4521, 6943, 7261, 17947, 20829, 21783, 53841, 76373, 79871, 197417, 229119, 239613, 592251, 951191, 2853573, 10463101, 31389303]

約数ペア:

[(1, 31389303), (3, 10463101), (11, 2853573), (33, 951191), (53, 592251), (131, 239613), (137, 229119), (159, 197417), (393, 79871), (411, 76373), (583, 53841), (1441, 21783), (1507, 20829), (1749, 17947), (4323, 7261), (4521, 6943)]