21996603

素因数分解:

$3^5\times {\mathrm{131}}^1\times {\mathrm{691}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 33249216

約数和(自身を除く): 11252613

約数列:

[1, 3, 9, 27, 81, 131, 243, 393, 691, 1179, 2073, 3537, 6219, 10611, 18657, 31833, 55971, 90521, 167913, 271563, 814689, 2444067, 7332201, 21996603]

約数ペア:

[(1, 21996603), (3, 7332201), (9, 2444067), (27, 814689), (81, 271563), (131, 167913), (243, 90521), (393, 55971), (691, 31833), (1179, 18657), (2073, 10611), (3537, 6219)]