20755455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4597}}^1$

素因数の和:4655

約数の個数: 32

約数和(自身を含む): 38843904

約数和(自身を除く): 18088449

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 4597, 13791, 22985, 32179, 68955, 96537, 160895, 197671, 482685, 593013, 988355, 1383697, 2965065, 4151091, 6918485, 20755455]

約数ペア:

[(1, 20755455), (3, 6918485), (5, 4151091), (7, 2965065), (15, 1383697), (21, 988355), (35, 593013), (43, 482685), (105, 197671), (129, 160895), (215, 96537), (301, 68955), (645, 32179), (903, 22985), (1505, 13791), (4515, 4597)]