81903735

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{9239}}^1$

素因数の和:9447

約数の個数: 24

約数和(自身を含む): 142702560

約数和(自身を除く): 60798825

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2955, 8865, 9239, 27717, 46195, 83151, 138585, 415755, 1820083, 5460249, 9100415, 16380747, 27301245, 81903735]

約数ペア:

[(1, 81903735), (3, 27301245), (5, 16380747), (9, 9100415), (15, 5460249), (45, 1820083), (197, 415755), (591, 138585), (985, 83151), (1773, 46195), (2955, 27717), (8865, 9239)]