42740012

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21499}}^1$

素因数の和:21581

約数の個数: 24

約数和(自身を含む): 86688000

約数和(自身を除く): 43947988

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 21499, 42998, 85996, 150493, 300986, 601972, 1526429, 3052858, 6105716, 10685003, 21370006, 42740012]

約数ペア:

[(1, 42740012), (2, 21370006), (4, 10685003), (7, 6105716), (14, 3052858), (28, 1526429), (71, 601972), (142, 300986), (284, 150493), (497, 85996), (994, 42998), (1988, 21499)]