31119231

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{251}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 51988608

約数和(自身を除く): 20869377

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 251, 289, 429, 561, 663, 753, 867, 2431, 2761, 3179, 3263, 3757, 4267, 7293, 8283, 9537, 9789, 11271, 12801, 35893, 41327, 46937, 55471, 72539, 107679, 123981, 140811, 166413, 217617, 610181, 797929, 943007, 1830543, 2393787, 2829021, 10373077, 31119231]

約数ペア:

[(1, 31119231), (3, 10373077), (11, 2829021), (13, 2393787), (17, 1830543), (33, 943007), (39, 797929), (51, 610181), (143, 217617), (187, 166413), (221, 140811), (251, 123981), (289, 107679), (429, 72539), (561, 55471), (663, 46937), (753, 41327), (867, 35893), (2431, 12801), (2761, 11271), (3179, 9789), (3263, 9537), (3757, 8283), (4267, 7293)]