21813927

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{2647}}^1$

素因数の和:2758

約数の個数: 16

約数和(自身を含む): 30250752

約数和(自身を除く): 8436825

約数列:

[1, 3, 41, 67, 123, 201, 2647, 2747, 7941, 8241, 108527, 177349, 325581, 532047, 7271309, 21813927]

約数ペア:

[(1, 21813927), (3, 7271309), (41, 532047), (67, 325581), (123, 177349), (201, 108527), (2647, 8241), (2747, 7941)]