21130145757

素因数分解:

$3^4\times 7^1\times {\mathrm{37266571}}^1$

素因数の和:37266590

約数の個数: 20

約数和(自身を含む): 36074041696

約数和(自身を除く): 14943895939

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37266571, 111799713, 260865997, 335399139, 782597991, 1006197417, 2347793973, 3018592251, 7043381919, 21130145757]

約数ペア:

[(1, 21130145757), (3, 7043381919), (7, 3018592251), (9, 2347793973), (21, 1006197417), (27, 782597991), (63, 335399139), (81, 260865997), (189, 111799713), (567, 37266571)]