20248921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 7399079

約数列:

[1, 7, 11, 17, 31, 77, 119, 187, 217, 341, 499, 527, 1309, 2387, 3493, 3689, 5489, 5797, 8483, 15469, 38423, 40579, 59381, 93313, 108283, 170159, 262973, 653191, 1191113, 1840811, 2892703, 20248921]

約数ペア:

[(1, 20248921), (7, 2892703), (11, 1840811), (17, 1191113), (31, 653191), (77, 262973), (119, 170159), (187, 108283), (217, 93313), (341, 59381), (499, 40579), (527, 38423), (1309, 15469), (2387, 8483), (3493, 5797), (3689, 5489)]