207655731

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7937}}^1$

素因数の和:7985

約数の個数: 40

約数和(自身を含む): 345779280

約数和(自身を除く): 138123549

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 323, 459, 513, 969, 1377, 1539, 2907, 7937, 8721, 23811, 26163, 71433, 134929, 150803, 214299, 404787, 452409, 642897, 1214361, 1357227, 2563651, 3643083, 4071681, 7690953, 10929249, 12215043, 23072859, 69218577, 207655731]

約数ペア:

[(1, 207655731), (3, 69218577), (9, 23072859), (17, 12215043), (19, 10929249), (27, 7690953), (51, 4071681), (57, 3643083), (81, 2563651), (153, 1357227), (171, 1214361), (323, 642897), (459, 452409), (513, 404787), (969, 214299), (1377, 150803), (1539, 134929), (2907, 71433), (7937, 26163), (8721, 23811)]