12643505

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 18382848

約数和(自身を除く): 5739343

約数列:

[1, 5, 7, 31, 35, 43, 155, 215, 217, 271, 301, 1085, 1333, 1355, 1505, 1897, 6665, 8401, 9331, 9485, 11653, 42005, 46655, 58265, 58807, 81571, 294035, 361243, 407855, 1806215, 2528701, 12643505]

約数ペア:

[(1, 12643505), (5, 2528701), (7, 1806215), (31, 407855), (35, 361243), (43, 294035), (155, 81571), (215, 58807), (217, 58265), (271, 46655), (301, 42005), (1085, 11653), (1333, 9485), (1355, 9331), (1505, 8401), (1897, 6665)]