21742641

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{5333}}^1$

素因数の和:5493

約数の個数: 16

約数和(自身を含む): 32430720

約数和(自身を除く): 10688079

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 5333, 15999, 47997, 143991, 805283, 2415849, 7247547, 21742641]

約数ペア:

[(1, 21742641), (3, 7247547), (9, 2415849), (27, 805283), (151, 143991), (453, 47997), (1359, 15999), (4077, 5333)]