20591307

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:169

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 15696693

約数列:

[1, 3, 9, 11, 19, 27, 33, 41, 57, 89, 99, 123, 171, 209, 267, 297, 369, 451, 513, 627, 779, 801, 979, 1107, 1353, 1691, 1881, 2337, 2403, 2937, 3649, 4059, 5073, 5643, 7011, 8569, 8811, 10947, 12177, 15219, 18601, 21033, 25707, 26433, 32841, 40139, 45657, 55803, 69331, 77121, 98523, 120417, 167409, 207993, 231363, 361251, 502227, 623979, 762641, 1083753, 1871937, 2287923, 6863769, 20591307]

約数ペア:

[(1, 20591307), (3, 6863769), (9, 2287923), (11, 1871937), (19, 1083753), (27, 762641), (33, 623979), (41, 502227), (57, 361251), (89, 231363), (99, 207993), (123, 167409), (171, 120417), (209, 98523), (267, 77121), (297, 69331), (369, 55803), (451, 45657), (513, 40139), (627, 32841), (779, 26433), (801, 25707), (979, 21033), (1107, 18601), (1353, 15219), (1691, 12177), (1881, 10947), (2337, 8811), (2403, 8569), (2937, 7011), (3649, 5643), (4059, 5073)]