21799743

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6967}}^1$

素因数の和:7126

約数の個数: 16

約数和(自身を含む): 33446400

約数和(自身を除く): 11646657

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6967, 20901, 48769, 146307, 1038083, 3114249, 7266581, 21799743]

約数ペア:

[(1, 21799743), (3, 7266581), (7, 3114249), (21, 1038083), (149, 146307), (447, 48769), (1043, 20901), (3129, 6967)]