17681937

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 29245440

約数和(自身を除く): 11563503

約数列:

[1, 3, 7, 13, 21, 39, 91, 239, 271, 273, 717, 813, 1673, 1897, 3107, 3523, 5019, 5691, 9321, 10569, 21749, 24661, 64769, 65247, 73983, 194307, 453383, 841997, 1360149, 2525991, 5893979, 17681937]

約数ペア:

[(1, 17681937), (3, 5893979), (7, 2525991), (13, 1360149), (21, 841997), (39, 453383), (91, 194307), (239, 73983), (271, 65247), (273, 64769), (717, 24661), (813, 21749), (1673, 10569), (1897, 9321), (3107, 5691), (3523, 5019)]