81780573

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{467}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 129392640

約数和(自身を除く): 47612067

約数列:

[1, 3, 7, 21, 31, 93, 217, 269, 467, 651, 807, 1401, 1883, 3269, 5649, 8339, 9807, 14477, 25017, 43431, 58373, 101339, 125623, 175119, 304017, 376869, 879361, 2638083, 3894313, 11682939, 27260191, 81780573]

約数ペア:

[(1, 81780573), (3, 27260191), (7, 11682939), (21, 3894313), (31, 2638083), (93, 879361), (217, 376869), (269, 304017), (467, 175119), (651, 125623), (807, 101339), (1401, 58373), (1883, 43431), (3269, 25017), (5649, 14477), (8339, 9807)]