20608641

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 32918400

約数和(自身を除く): 12309759

約数列:

[1, 3, 9, 17, 27, 51, 59, 153, 177, 459, 531, 761, 1003, 1593, 2283, 3009, 6849, 9027, 12937, 20547, 27081, 38811, 44899, 116433, 134697, 349299, 404091, 763283, 1212273, 2289849, 6869547, 20608641]

約数ペア:

[(1, 20608641), (3, 6869547), (9, 2289849), (17, 1212273), (27, 763283), (51, 404091), (59, 349299), (153, 134697), (177, 116433), (459, 44899), (531, 38811), (761, 27081), (1003, 20547), (1593, 12937), (2283, 9027), (3009, 6849)]