1321281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 2149056

約数和(自身を除く): 827775

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 491, 897, 1473, 2691, 4419, 6383, 11293, 19149, 33879, 57447, 101637, 146809, 440427, 1321281]

約数ペア:

[(1, 1321281), (3, 440427), (9, 146809), (13, 101637), (23, 57447), (39, 33879), (69, 19149), (117, 11293), (207, 6383), (299, 4419), (491, 2691), (897, 1473)]