21718610

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:418

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 18343342

約数列:

[1, 2, 5, 10, 83, 137, 166, 191, 274, 382, 415, 685, 830, 955, 1370, 1910, 11371, 15853, 22742, 26167, 31706, 52334, 56855, 79265, 113710, 130835, 158530, 261670, 2171861, 4343722, 10859305, 21718610]

約数ペア:

[(1, 21718610), (2, 10859305), (5, 4343722), (10, 2171861), (83, 261670), (137, 158530), (166, 130835), (191, 113710), (274, 79265), (382, 56855), (415, 52334), (685, 31706), (830, 26167), (955, 22742), (1370, 15853), (1910, 11371)]