20425245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{463}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 34877952

約数和(自身を除く): 14452707

約数列:

[1, 3, 5, 15, 17, 51, 85, 173, 255, 463, 519, 865, 1389, 2315, 2595, 2941, 6945, 7871, 8823, 14705, 23613, 39355, 44115, 80099, 118065, 240297, 400495, 1201485, 1361683, 4085049, 6808415, 20425245]

約数ペア:

[(1, 20425245), (3, 6808415), (5, 4085049), (15, 1361683), (17, 1201485), (51, 400495), (85, 240297), (173, 118065), (255, 80099), (463, 44115), (519, 39355), (865, 23613), (1389, 14705), (2315, 8823), (2595, 7871), (2941, 6945)]