21698931

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{13127}}^1$

素因数の和:13178

約数の個数: 16

約数和(自身を含む): 31507200

約数和(自身を除く): 9808269

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 13127, 39381, 249413, 380683, 748239, 1142049, 7232977, 21698931]

約数ペア:

[(1, 21698931), (3, 7232977), (19, 1142049), (29, 748239), (57, 380683), (87, 249413), (551, 39381), (1653, 13127)]