20918487

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{8951}}^1$

素因数の和:9014

約数の個数: 16

約数和(自身を含む): 30078720

約数和(自身を除く): 9160233

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 8951, 26853, 170069, 366991, 510207, 1100973, 6972829, 20918487]

約数ペア:

[(1, 20918487), (3, 6972829), (19, 1100973), (41, 510207), (57, 366991), (123, 170069), (779, 26853), (2337, 8951)]