16668729

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 30551040

約数和(自身を除く): 13882311

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 67, 77, 99, 201, 231, 359, 469, 603, 693, 737, 1077, 1407, 2211, 2513, 3231, 3949, 4221, 5159, 6633, 7539, 11847, 15477, 22617, 24053, 27643, 35541, 46431, 72159, 82929, 168371, 216477, 248787, 264583, 505113, 793749, 1515339, 1852081, 2381247, 5556243, 16668729]

約数ペア:

[(1, 16668729), (3, 5556243), (7, 2381247), (9, 1852081), (11, 1515339), (21, 793749), (33, 505113), (63, 264583), (67, 248787), (77, 216477), (99, 168371), (201, 82929), (231, 72159), (359, 46431), (469, 35541), (603, 27643), (693, 24053), (737, 22617), (1077, 15477), (1407, 11847), (2211, 7539), (2513, 6633), (3231, 5159), (3949, 4221)]