31820243

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 42223104

約数和(自身を除く): 10402861

約数列:

[1, 7, 13, 17, 67, 91, 119, 221, 307, 469, 871, 1139, 1547, 2149, 3991, 5219, 6097, 7973, 14807, 20569, 27937, 36533, 67847, 103649, 143983, 267397, 349673, 474929, 1871779, 2447711, 4545749, 31820243]

約数ペア:

[(1, 31820243), (7, 4545749), (13, 2447711), (17, 1871779), (67, 474929), (91, 349673), (119, 267397), (221, 143983), (307, 103649), (469, 67847), (871, 36533), (1139, 27937), (1547, 20569), (2149, 14807), (3991, 7973), (5219, 6097)]