212311715

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{17789}}^1$

素因数の和:17843

約数の個数: 32

約数和(自身を含む): 327905280

約数和(自身を除く): 115593565

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 155, 217, 341, 385, 1085, 1705, 2387, 11935, 17789, 88945, 124523, 195679, 551459, 622615, 978395, 1369753, 2757295, 3860213, 6066049, 6848765, 19301065, 30330245, 42462343, 212311715]

約数ペア:

[(1, 212311715), (5, 42462343), (7, 30330245), (11, 19301065), (31, 6848765), (35, 6066049), (55, 3860213), (77, 2757295), (155, 1369753), (217, 978395), (341, 622615), (385, 551459), (1085, 195679), (1705, 124523), (2387, 88945), (11935, 17789)]