21490188

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{77863}}^1$

素因数の和:77893

約数の個数: 24

約数和(自身を含む): 52324608

約数和(自身を除く): 30834420

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 77863, 155726, 233589, 311452, 467178, 934356, 1790849, 3581698, 5372547, 7163396, 10745094, 21490188]

約数ペア:

[(1, 21490188), (2, 10745094), (3, 7163396), (4, 5372547), (6, 3581698), (12, 1790849), (23, 934356), (46, 467178), (69, 311452), (92, 233589), (138, 155726), (276, 77863)]