21234670

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{1979}}^1$

素因数の和:2052

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 19394930

約数列:

[1, 2, 5, 10, 29, 37, 58, 74, 145, 185, 290, 370, 1073, 1979, 2146, 3958, 5365, 9895, 10730, 19790, 57391, 73223, 114782, 146446, 286955, 366115, 573910, 732230, 2123467, 4246934, 10617335, 21234670]

約数ペア:

[(1, 21234670), (2, 10617335), (5, 4246934), (10, 2123467), (29, 732230), (37, 573910), (58, 366115), (74, 286955), (145, 146446), (185, 114782), (290, 73223), (370, 57391), (1073, 19790), (1979, 10730), (2146, 9895), (3958, 5365)]