521389921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 606735360

約数和(自身を除く): 85345439

約数列:

[1, 13, 23, 43, 107, 299, 379, 559, 989, 1391, 2461, 4601, 4927, 8717, 12857, 16297, 31993, 40553, 59813, 105823, 113321, 211861, 374831, 527189, 932719, 1375699, 1743779, 4872803, 12125347, 22669127, 40106917, 521389921]

約数ペア:

[(1, 521389921), (13, 40106917), (23, 22669127), (43, 12125347), (107, 4872803), (299, 1743779), (379, 1375699), (559, 932719), (989, 527189), (1391, 374831), (2461, 211861), (4601, 113321), (4927, 105823), (8717, 59813), (12857, 40553), (16297, 31993)]