21040149

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{6829}}^1$

素因数の和:6924

約数の個数: 16

約数和(自身を含む): 30598400

約数和(自身を除く): 9558251

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 6829, 20487, 88777, 266331, 539491, 1618473, 7013383, 21040149]

約数ペア:

[(1, 21040149), (3, 7013383), (13, 1618473), (39, 539491), (79, 266331), (237, 88777), (1027, 20487), (3081, 6829)]