19712156

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2239}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 36126720

約数和(自身を除く): 16414564

約数列:

[1, 2, 4, 31, 62, 71, 124, 142, 284, 2201, 2239, 4402, 4478, 8804, 8956, 69409, 138818, 158969, 277636, 317938, 635876, 4928039, 9856078, 19712156]

約数ペア:

[(1, 19712156), (2, 9856078), (4, 4928039), (31, 635876), (62, 317938), (71, 277636), (124, 158969), (142, 138818), (284, 69409), (2201, 8956), (2239, 8804), (4402, 4478)]