211808219

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4073}}^1$

素因数の和:4139

約数の個数: 32

約数和(自身を含む): 281594880

約数和(自身を除く): 69786661

約数列:

[1, 7, 17, 19, 23, 119, 133, 161, 323, 391, 437, 2261, 2737, 3059, 4073, 7429, 28511, 52003, 69241, 77387, 93679, 484687, 541709, 655753, 1315579, 1592543, 1779901, 9209053, 11147801, 12459307, 30258317, 211808219]

約数ペア:

[(1, 211808219), (7, 30258317), (17, 12459307), (19, 11147801), (23, 9209053), (119, 1779901), (133, 1592543), (161, 1315579), (323, 655753), (391, 541709), (437, 484687), (2261, 93679), (2737, 77387), (3059, 69241), (4073, 52003), (7429, 28511)]