13243221

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{857}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 20478744

約数和(自身を除く): 7235523

約数列:

[1, 3, 9, 17, 51, 101, 153, 303, 857, 909, 1717, 2571, 5151, 7713, 14569, 15453, 43707, 86557, 131121, 259671, 779013, 1471469, 4414407, 13243221]

約数ペア:

[(1, 13243221), (3, 4414407), (9, 1471469), (17, 779013), (51, 259671), (101, 131121), (153, 86557), (303, 43707), (857, 15453), (909, 14569), (1717, 7713), (2571, 5151)]