21653510

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1361}}^1$

素因数の和:1448

約数の個数: 32

約数和(自身を含む): 40990752

約数和(自身を除く): 19337242

約数列:

[1, 2, 5, 10, 37, 43, 74, 86, 185, 215, 370, 430, 1361, 1591, 2722, 3182, 6805, 7955, 13610, 15910, 50357, 58523, 100714, 117046, 251785, 292615, 503570, 585230, 2165351, 4330702, 10826755, 21653510]

約数ペア:

[(1, 21653510), (2, 10826755), (5, 4330702), (10, 2165351), (37, 585230), (43, 503570), (74, 292615), (86, 251785), (185, 117046), (215, 100714), (370, 58523), (430, 50357), (1361, 15910), (1591, 13610), (2722, 7955), (3182, 6805)]