131226561

素因数分解:

$3^9\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 201944160

約数和(自身を除く): 70717599

約数列:

[1, 3, 9, 27, 59, 81, 113, 177, 243, 339, 531, 729, 1017, 1593, 2187, 3051, 4779, 6561, 6667, 9153, 14337, 19683, 20001, 27459, 43011, 60003, 82377, 129033, 180009, 247131, 387099, 540027, 741393, 1161297, 1620081, 2224179, 4860243, 14580729, 43742187, 131226561]

約数ペア:

[(1, 131226561), (3, 43742187), (9, 14580729), (27, 4860243), (59, 2224179), (81, 1620081), (113, 1161297), (177, 741393), (243, 540027), (339, 387099), (531, 247131), (729, 180009), (1017, 129033), (1593, 82377), (2187, 60003), (3051, 43011), (4779, 27459), (6561, 20001), (6667, 19683), (9153, 14337)]