21027420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116819}}^1$

素因数の和:116834

約数の個数: 36

約数和(自身を含む): 63783720

約数和(自身を除く): 42756300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116819, 233638, 350457, 467276, 584095, 700914, 1051371, 1168190, 1401828, 1752285, 2102742, 2336380, 3504570, 4205484, 5256855, 7009140, 10513710, 21027420]

約数ペア:

[(1, 21027420), (2, 10513710), (3, 7009140), (4, 5256855), (5, 4205484), (6, 3504570), (9, 2336380), (10, 2102742), (12, 1752285), (15, 1401828), (18, 1168190), (20, 1051371), (30, 700914), (36, 584095), (45, 467276), (60, 350457), (90, 233638), (180, 116819)]