20836645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 7156955

約数列:

[1, 5, 17, 29, 79, 85, 107, 145, 395, 493, 535, 1343, 1819, 2291, 2465, 3103, 6715, 8453, 9095, 11455, 15515, 38947, 42265, 52751, 143701, 194735, 245137, 263755, 718505, 1225685, 4167329, 20836645]

約数ペア:

[(1, 20836645), (5, 4167329), (17, 1225685), (29, 718505), (79, 263755), (85, 245137), (107, 194735), (145, 143701), (395, 52751), (493, 42265), (535, 38947), (1343, 15515), (1819, 11455), (2291, 9095), (2465, 8453), (3103, 6715)]