21478796

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1409}}^1$

素因数の和:1553

約数の個数: 24

約数和(自身を含む): 39006240

約数和(自身を除く): 17527444

約数列:

[1, 2, 4, 37, 74, 103, 148, 206, 412, 1409, 2818, 3811, 5636, 7622, 15244, 52133, 104266, 145127, 208532, 290254, 580508, 5369699, 10739398, 21478796]

約数ペア:

[(1, 21478796), (2, 10739398), (4, 5369699), (37, 580508), (74, 290254), (103, 208532), (148, 145127), (206, 104266), (412, 52133), (1409, 15244), (2818, 7622), (3811, 5636)]