20118813

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2039}}^1$

素因数の和:2089

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 12782307

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 253, 299, 429, 759, 897, 2039, 3289, 6117, 9867, 22429, 26507, 46897, 67287, 79521, 140691, 291577, 515867, 609661, 874731, 1547601, 1828983, 6706271, 20118813]

約数ペア:

[(1, 20118813), (3, 6706271), (11, 1828983), (13, 1547601), (23, 874731), (33, 609661), (39, 515867), (69, 291577), (143, 140691), (253, 79521), (299, 67287), (429, 46897), (759, 26507), (897, 22429), (2039, 9867), (3289, 6117)]