21640041

素因数分解:

$3^4\times {\mathrm{433}}^1\times {\mathrm{617}}^1$

素因数の和:1062

約数の個数: 20

約数和(自身を含む): 32453652

約数和(自身を除く): 10813611

約数列:

[1, 3, 9, 27, 81, 433, 617, 1299, 1851, 3897, 5553, 11691, 16659, 35073, 49977, 267161, 801483, 2404449, 7213347, 21640041]

約数ペア:

[(1, 21640041), (3, 7213347), (9, 2404449), (27, 801483), (81, 267161), (433, 49977), (617, 35073), (1299, 16659), (1851, 11691), (3897, 5553)]