20223397649

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 26040000000

約数和(自身を除く): 5816602351

約数列:

[1, 7, 13, 49, 61, 91, 149, 343, 427, 499, 637, 793, 1043, 1937, 2989, 3493, 4459, 5551, 6487, 7301, 9089, 13559, 20923, 24451, 30439, 38857, 45409, 51107, 63623, 74351, 94913, 118157, 171157, 213073, 271999, 317863, 395707, 445361, 520457, 664391, 827099, 966563, 1491511, 2225041, 2769949, 3117527, 3643199, 4535411, 5789693, 6765941, 10440577, 19389643, 25502393, 31747877, 40527851, 47361587, 58960343, 135727501, 222235139, 331531109, 412722401, 1555645973, 2889056807, 20223397649]

約数ペア:

[(1, 20223397649), (7, 2889056807), (13, 1555645973), (49, 412722401), (61, 331531109), (91, 222235139), (149, 135727501), (343, 58960343), (427, 47361587), (499, 40527851), (637, 31747877), (793, 25502393), (1043, 19389643), (1937, 10440577), (2989, 6765941), (3493, 5789693), (4459, 4535411), (5551, 3643199), (6487, 3117527), (7301, 2769949), (9089, 2225041), (13559, 1491511), (20923, 966563), (24451, 827099), (30439, 664391), (38857, 520457), (45409, 445361), (51107, 395707), (63623, 317863), (74351, 271999), (94913, 213073), (118157, 171157)]